The book, _______ is blue, is mine.
A. cover of which B. which cover
C. of which the cover D. all the above
_____ the watch and see if you can find out what’s wrong with it.
A. Pack up B. Break down C. Dig out D. Take apart
John is a good swimmer, but I don’t like the way ____ he always shows off in front of everyone.
A. how B. why C. 不填 D. which
_____ you understand the rules of the game, you will enjoy it.
A. Before B. Even if C. Once D. While
The child asked his mother ______ go out to play tennis.
A．that he could B．if he could C．if could he D．that could he
Mr. Zhang, our math teacher, is strict with students and serious in teaching work, so he ____.
A. thinks highly of B. is thought highly
C. is highly thinking D. is highly thought of
