At school, some students are active ______ some are shy, yet they can be good friends with one another.
| A．while | B．although | C．so | D．as |
—When did you come back?
—An hour ago. Youthe computer games.
| A．have played | B．were playing | C．played | D．had played |
As _______ unemployment is very high at the moment, it’s very difficult for people to find _______ work.
| A．the, 不填 | B．不填，不填 | C．the, a | D．an, the |
—Would you mind if I closed the window?
—______. It’s that cold outside.
| A．Sorry, I’m afraid | B．Yes, help yourself | C．Sorry, you don’t | D．No, go ahead |
The playnext month aims mainly to show the local culture．
| A．produced | B．being produced |
| C．to be produced | D．having been produced |
The hospital is ______ signs telling patients that it can offer only limited services.
| A．holding up | B．putting up | C．building up | D．going up |