I think it _______ to smoke . —— _______.

But for water，it ______ possible to live in the desert．

The heavy construction equipment was first transported to that place ______ workers would reach a week later.

.My teacher is very nice. I’ll never forget the______he has done for me.

As a laid-off worker, it is hard for her father to ______ the family, let alone send his children to key schools.