________ animals are in danger and there will be ________ space for them if we don’t take any actions.

. The reason why I have to go is _____ if I don’t.

Egypt is famous for ____ pyramids.

What ________ the number of the students in your school? –About two thousand. A number of them_________ from England.

Your shoes are too old, Why not buy a new _______? —I think so.[ ]