You are late again. The class _________ for five minutes.—Sorry. There’s something wrong with my bike.

_____ is this red coat- It’s 40 yuan.

What can we learn from Lei Feng — We should not only think about , we should think about others as well.

Computer is so useful. It can do almost everything.—Yes, but it ______ what to do.

Eric, can you carry the books for me — __________ I am glad to help you.