I’m afraid a car is too expensive for me. –But more and more Chinese can to buy it.

I found a story-book on the desk, it isn’t mine, it is ___,I think.

We will go climbing _____it_____ tomorrow.[ ]

All the oil in the world will have __________ some day. —Yeah. What shall we use for power at that time?

Every time Ashtita tries to break a record, he reaches a point ______ he feels he cannot physically do any more.