My grandfather was badly ill, so we asked him _________ smoking.
| A．to give up | B．give up |
| C．gave up | D．given up |
--- _________ does your cousin go to the gym? --- Twice a week.
| A．How long | B．How often |
| C．How soon | D．How far |
You _________ drive on when the traffic light is red.
| A．can’t | B．needn’t |
| C．mustn’t | D．may not |
Look! So many passengers________ with their phones on the underground.
| A．play | B．will play |
| C．are playing | D．have played |
A human brain can do many things, such as creating new ideas, ________ than a computer.
| A．good | B．better |
| C．best | D．the best |