What’s wrong with you, Eric? You look tired.—I ________ to prepare for the final exam last night.

This map is drawn to the _______ of one inch for 1000 miles, so you can find out how far it is from Beijing to Shanghai.

There is______elephant in the zoo._______elephant is from Africa.

When will Han Han’s new book ________? —Sorry, I don’t know. I’m looking forward to his new book, too.

How long _____ in this job? – Since