If you don’t work ______ enough, I don’t think yourdream will come ______.

If he is determined to do what he wants to do, he will do so ____ what others think of him

Could you look after my pet dog for me while I amaway — _______.

Only when he returned from the exchange program ________ how much he enjoyed it.[ ]

You see，I’m poor in maths，you are not good atEnglish，and…—That’s________we should help each other.