Answer:
1. Is your schoolbag made of denim? No, it isn't.
3. Was this portrait painted in 1926? Yes, it was.
4. Are the sculptures washed every year? No, they aren't.
5. Were those sculptures made by Picasso in the past? Yes, they were.
6. Is the Colosseum located in Rome? Yes, it is.
Explanation:
The activity above concerns the use of the verb "to be" in the simple present and the simple past tenses.
In the present tense, the verb "to be" has three forms: am, is, and are. "Am" is used with "I", "is" is used with "he, she, it", and "are" is used with "you, we, and they". We use this tense in numbers 1, 4, and 6 above because those are questions about the present moment.
In the past tense, the verb "to be" has two forms: was and were. "Was" is used with "I, he, she, and it", and "were" is used with "you, we, and they". We use this tense in numbers 3 and 5 above because those are questions about the past ("1926", and "in the past" are our clues".
