They had planted 10,000 trees of last month.

Mr Smith gradually _____ a knowledge ofthe subject

I love the Internet. I’ve come to know many friends on the Net. — . Few of them would become your real friends.

I’m hoping that John will let us have the car tonight; __________, I’m afraid we won’t be able to go out.

Boys and girls, Listen to me carefully, Let me tell you______ to the Bird Island.