1. They will use renewable energy in the future.
=> Renewable energy …………………………………………..…
2. That is her school.
=> That school is ……………………………..………
3. How long was your flight from Hongkong to Hanoi?
=> How long did it………………………………………?
4. My mother can cook very well.
=> My mother is………………….………….
5. Roller-skating doesn’t interest me.
=> I am not……………………………………………………………………
6. Why were you absent from class last Monday?
=> Why didn’t you……………………………………………….?
7. I didn’t have a toothache. They didn’t have a toothache.
=> I didn’t……………………, either.
8. It takes me about two hours each day to do my homework.
=> I spend…………………………………………………
9. Will you please look after the house while I am away?
=> Will you take…………………………………………………………………………………?