The Red Cross goes into areas _______ help is badly needed.
| A．why | B．which | C．where | D．that |
. The young teacher found it hard to _____ his explanation in class most of the time.
A. go through B. pull through C come acmes D. get across
. Some inventions are well received, but _____ function, they aren't very successful.
A. according to B. in terms of C regardless of D. owing to
It also awards me _____ opportunity to learn American culture at _____ first hand.
| A．/; the | B．the; a | C．an; / | D．/; a |
We ________ last night, but we went to the concert instead.
| A．must have studied | B．might study | C．should have studied | D．would study |
．---I’m terribly sorry to have put you through so much trouble.
--- ________. I know you didn’t mean to.
| A．Forget it | B．No trouble | C．All right | D．You’re welcome |