—Mr. Wang, I have trouble ____ the text.
—Remember ____ it three times at least.
| A．to understand; reading | B．understanding; reading |
| C．understanding; to read | D．to understand; to read |
Mary keeps talking about the party. She had a very good time,_______?
| A．hadn’t she | B．had she |
| C．didn’t she | D．did she |
Don’t put off today’s work for tomorrow. I mean, today’s work______ today.
| A．may do | B．must do | C．may be done | D．must be done |
Most people _______when the big earthquake took place in that area.
| A．are sleeping | B．were sleeping |
| C．slept | D．sleep |
Look! What a clean room! Who_______ it?
| A．has tidied | B．is tidying | C．will tidy | D．tidied |
Many students have to______ their hobbies because of their busy school work.
| A．stay up | B．put up | C．give up | D．look up |