( )The doctor often tells him ____ more exercise.
| A．to take | B．taking | C．taken | D．take |
( )- Can you sing the song in English?
-- No, I ____.
| A．may not | B．mustn't | C．needn't | D．can't |
( )Bruce, look at your dirty shoes. You'd better _____ them right now.
| A．washed | B．washing | C．wash | D．to wash |
( )I met Kate on _____ way home yesterday.
| A．my | B．me | C．his | D．him |
( ) It's hot _____ summer in Beijing.
| A．by | B．on | C．at | D．in |