______ healthy, we students always do morning exercises every day at school.
| A． |
Keep |
B． |
To keep |
| C． |
Keeping |
D． |
Keeps |
The children decide their school yard this Friday afternoon.
| A．clean | B．to clean |
| C．cleaning | D．cleaned |
In China and some other countries,it is impolite to speak loudly you are having a meal.
| A．before | B．while | C．after | D．because |
—Must I hand in my homework now,Mr.Smith?
—No,you .
| A．can’t | B．shouldn’t | C．wouldn’t | D．needn’t |
It is reported that people throw plastic bags along this street every day.(2015六盘水)
| A．hundred | B．hundreds |
| C．hundreds of | D．hundred of |
—Look at the flowers I gave you last month.They are dying! do you water them?
—Sorry,I forgot to water them.
| A．How long | B．How often | C．How soon | D．How much |