—What do you think of the lecture delivered by the expert?
—It ______ very well; everyone liked it.
| A．came across | B．put aside |
| C．broke off | D．went away |
She often helps the students __ ___ she thinks are not good at English.
| A．whom | B．which | C．who | D．when |
—Could I borrow your camera tomorrow?
—I don’t think you need it, because visitors ______ to take photos there.
| A．aren’t allowed | B．don’t allow |
| C．haven’t allowed | D．hadn’t been allowed |
After the equipment was introduced; they produced_______ machines this year as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |
College students should be encouraged to use _____ Internet as _____ resource when planning a term paper.
| A．the; a | B．/; the |
| C．the; the | D．a; a |
There is n’t any difference between the two.I really don’t know __________.
Ａ.what to choose B. which to choose
C. to choose what D. to choose which