—Why not talk with your parents about your willingness to attend Peking University Summer Camp?
—I tried __________to get them to listen to me.
| A．in time | B．in vain | C．in need | D．in case |
Is it high time that the children _____ go to school ?
| A．will go | B．went | C．would go | D．to go |
We are all _______about her safety . As far as I am _____, this case _____her .
| A．concerns ,concerned , concerns | B．concerned , concerned , concerns |
| C．concerns , concerns, concerned | D．concerning ,concerned ,concerns |
After supper Wang Wei put her head down on her pillow and went to sleep but I stayed _______.
| A．to be waking | B．waked | C．waking | D．awake |
______ you make a promise, you should keep ______.
| A．Once… it | B．If… it | C．When … one | D．Although … one |
I insist that he _______ medicine instead of law.
| A．has studied | B．studies | C．should study | D．studied |