One of the men gave his opinion ____ what the book said was right.
| A．that | B．what | C．whether | D．which |
So far, all of the infected people are thought _______ the flu after direct contact with sick birds.
| A．to have caught | B．having caught | C．to catch | D．being caught |
A number of high buildings have arisen ______ there was nothing a year ago.
| A．when | B．where | C．before | D．until |
It was reported that a little boy under a destroyed house for three days was pulled out alive at last.
| A．trapped | B．being trapped | C．was trapped | D．had been trapped |
Devoted to the rescue of the earthquake victims, the volunteers felt _____ but regret.
| A．anything | B．nothing | C．something | D．somehow |
----Mary broke up with me!
----You ______ have forgotten about the Valentine's Day．
| A．shouldn't | B．couldn't | C．needn't | D．mustn't |