The students ___ busily when Miss Brown went to get a book she ___ in the office.
That is the only way we can imaginethe overuse of water in students' bathrooms.
(北京卷28). It took me a long time before I was able to fully appreciate what they __ for me.
(北京卷26). --I'm sorry, but I don't quite follow you. Did you say you wanted to return on September 20? --Sorry, I myself clear. We want to return on October 20.
.(北京卷24). --I'm not finished with my dinner yet.--But our friends for us.
(北京卷22). In the spoken English of some areas in the US, the "r" sounds at the end of the words .