Question

Choose an appropriate polite verb form of ねる.

Answer 1

1) The verb form of infinitive  ねる. (to sleep) is the first choice : ねます. In this option after the main character put in infinitive form you can see a prefix that indicates the action which will happen. If the infinitive is to sleep, then you have to say that you will sleep. (Neru -Nemasu). The second option contains completely different meaning as this verb has two ones  knead (練る) and sleep (寝る).

2) Seems like the given example does not cincides with the options, as they contain meaning connected to study process whereas the given expression says "I will prepare a surprize''. Here is the gramatically correct form of the sentence-べんきょうをすませる- I will finish my study.

3) You should choose correct verb with appropriate kana used. The most suitable is definitely ''みつけます '' that means to count which perfectly completes the given example. If you use additional kana り you will change the meaning into ''I can cherish".

4) The correct answer should be およぎます as it contains two needed plain stem that makes a verb polite without changing its meaninng.

5) As you can see, the verb is given in the form of infinitive, so you have to choose stem in order to make it polite and stay in the same form. The best option is みつけます "to find out" as the second option contains 'り' which turns tence into future. 

6)  The best form of かえす is definitely かえします as in this case the meaning of the given verb still the same but with needed transformation. The other option shows an example of related word to "to return" but the one I choose is gramatically proper.

7) The correct form of the sentence looks like this with が particle used :がっこう が はじまります. I choose this one because we need to point out the subject and the particle が is the needed one. Translation - The school begins.

8) In this sentence we should put in a preposition with meaning of a direction, as the general meaning of the sentence is ''I will go to my house''. As you can see there is missing ''to'' which is に ふとん に ねます. Or へ, but it is not one of the options.

9) Again, the lack of the preposition. We have the sentence with meaning がっこう_______いきます。 I will go to school, ''to'' is needed preposition which is に. Other options contain conjuctions.

10) うち に かえります. I will come back home, just do the same thing analogically, we need the same preposition as we used in the previous sentence, we just need to use に to complete the direction.

11) Another varian of ''I will come home'', but with a slight difference " I will return home". You insert the same preposition as in the previous two sentences as we have an object moving to the location with no needed preposition to point out the action : うち に  かえります

12) In this sentence we can see the action which is being adressed towards object, ''I will give you my money'' the structure is like '' I will give my money to you'' that 'to' is the preposition we are looking for, but do not mix it with previous one. Use を in order to express the acton towards object.おかね かぞえます. 
 
13) Another example of action which will happen in the location, the translation of this sentence is ''I will eat in the restaraunt''. To express in or at we use  is "... で" or "... に.'' respectively, so you can use both of them.

14) The sentence プレゼントが もらいます has a meaning ''I receive presents'' and in this case there is an object that should be indicated. The particle which we use to support object (present) is が, as I mentioned before.

15) As every language, Japanese has its idioms and the phrase ''Happy Birthday" is not an exception and obviously is one of the most needed for the learners from beginners to advancers. And in japanese it looks like in the second option - おたんじょうびおめでとう. The first one is connected to New Year, the third contains a question and the last one is a regular sentence.

16) MacDonald's in Japanese is written as マクドナルド. You can check it everywhere, but you might find out that まくどなるど  means McDonald's too. This difference depends on the conext, but the company of fast food choose the first name as its Japanese adaptation.

17) In this sentence なんじかんねますか you can see the mentioned period of time and since it is a question it means that person asks something like : How long have you been asleep. According to given options, the soccrect one is : How many hours you sleep.

18) This question means that person wants to know when the school starts, and I consider the first option to be the best one. As the given sentence does not contain such words as 'month' or 'july' and the tone of the sentence is not put in the present perfect tense which means that school has not started and person wondering when it will.