Mary with her sisters ________ Chinese in China.
| A．are studying | B．have studied | C．is studying | D．study |
Your home town is really nice!The air quality is as good as______of Sanya.
| A．it | B．one | C．that | D．the one |
---I'm going to give a talk on the Dragon Boat Festival to the exchange students.
---Great! But don't forget to tell them______.
| A．what should they eat at the festival |
| B．why people enjoy the full moon |
| C．what kind of race is often held |
| D．How do people celebrate it |
---Jack, I'd like to have your opinions about my report.
---________.But I have one suggestion.
| A．That's a good idea | B．I agree with you |
| C．It looks fine to me | D．Check it first |
Mike used to be a top student, but he______ behind since he lost himself in computer games.
| A．fell | B．has fallen |
| C．was | D．has been |
---Jenny，will you leave for the USA now?
---No. It will be two weeks________I leave here.
| A．until | B．since | C．before | D．when |