.Only when your identity has been checked ________.
| A．you are allowed in | B．you will be allowed in | C．will you allow in | D．will you be allowed in |
Discovering consists of seeing what everybody has seen andwhat nobody has thought.
| A．think | B．thinking | C．thought | D．to think |
—Did the policeman let you in?—No, I told him who I was.
| A．if | B．once | C．as though | D．even though |
He likesmusic so much that I think it right to buy himMP3 asbirthday present.
| A．the; an; a | B．不填；an; the | C．不填；an；a | D．the；a; a |
I suggested not only _____ go to the meeting but also give a speech there.
| A．did he go | B．his going | C．should he go | D．he should go |
Information obtained from libraries is sooner forgotten than ____.
| A．it from life | B．that from life | C．what from life | D．which of life |