—Does your mother often go shopping at weekends?
—Yes, she ______.
| A．is | B．do | C．does | D．doesn’t |
We know that about seventy percent _____ the earth _____ covered by water.
| A．/; is | B．of; are |
| C．of; is | D．about; are |
The question is _________ .
| A．so hard for us to understand it |
| B．too hard for us to understand it |
| C．too hard for us to understand |
| D．so hard for us to understand |
-- Must I return the book this week?
-- No, you ______. You can _____ it for 20 days.
| A．mustn’t; keep | B．don’t have to; borrow |
| C．needn’t; keep | D．mustn’t; lend |
– You shouldn’t stay up late tonight.
–Thanks, I will go to bed earlier. .
| A．No pain, no gain |
| B．I believe practice makes perfect |
| C．Many hands make light work |
| D．I won’t burn the candle at both sides |
The president of the USAaround the Palace Museum last month.
| A．has showed | B．showed |
| C．was showed | D．has been showed |