There ______ a number of books on the bookshelf. And the number of the books ____ 50.
We ______win the game. The other team is not strong at all.
--- What do you think of the book ?--- Oh , excellent . It’s worth __________ a second time .
--- I have changed my job. --- .
Your iPad is quite nice. Where did you buy ______? I want to buy ______, too.
―What are you doing, Jack?―I’m looking for some information about famous people______can help me make a poster. .