Here you are! This is one of the keys ____ the lock.
| A．of | B．for | C．to | D．in |
I ________ play computer games, but now I don’t like it.
A. use to B. am used to C used to
She is fond of ________. She cooks for her family everyday.
A. cooking B. cook C. cooks
－Where are the boys of Class Five?
－I saw them _________basketball on the playground.
A. played B .playing C. to play
－Must I take part in the activity?
－No, you _________.
A. mustn’t B. don’t C. don’t have to
－Watching TV too much ________ bad for your eyes.
A. is B. are C. was