A: ____ boys and girls are there in your class B: There’re 21 boys and 20 girls.

We can’t ______ the carThere ______ something wrong with the engine

If you don’t try your best to learn all subjects, you will ___ behind.

I have got a headache –No wonder You ___in front of thatcomputer too long

Have you seen the movie Qian Xuesen –Yes , I am deeply_____by the old great scientist.