Mr Smith ______ a book about China last year but I don’t know whether he has finished it.
To everyone’s surprise, Tom claimed _______ all his work two days ago.
We were really worried about you, you________ home without saying a word.
Eight dollars for just a cup of coffee? I’m afraid you got________.
The teacher made a request that all the homework_______ before class.
The key______ the problem of traffic jams is to pay the “ congestion charge” ______ by the mayor of London.