Câu hỏi:

My sister hair isn't _______

Please turn __________ the gas. I want to cook my lunch.

Our energy will soon come to an end if we don’t__________ it.

What _____ of learning English do you find most difficult? Is it grammar rules or speaking?

If you want to save money, you should ________the amount of water your family use

If there is a mechanical problem, we suggest ______ the manufacturer directly.

I like bananas, __________my brother doesn’t.