______ healthy, we students always do morning exercises every day at school.
| A． |
Keep |
B． |
To keep |
| C． |
Keeping |
D． |
Keeps |
This dictionary is pretty cheap. The price of it is _________ of the three.
| A．very low | B．quite low | C．the lowest | D．much lower |
— Must I answer this question in English?
— No, you_________.
| A．mustn’t | B．needn’t | C．can’t | D．shouldn’t |
— Lisa, we need to clean the kitchen. Could you _________ the trash?
— Yes, sure.
| A．take after | B．take off | C．take place | D．take out |
Helen has two sisters and a brother. Her brother is working, but _________her sisters are still at school.
| A．neither | B．either | C．all | D．both |
Now the train service is very good. The trains are _________on time.
| A．hardly | B．always | C．never | D．sometimes |