_______ we couldn’t understand was _______ more and more students went abroad after graduation.
| A．What; because | B．That; because | C．Why; that | D．What; why |
Nearly three days after an 8.8-magnitude earthquake, rescuers 
in Chile were making every effort to _______ possible survivors.
| A．trap | B．reach | C．shelter | D．seize |
The meeting achieved _______ a short statement, leaving many details to be worked out later.
| A．other than | B．anything but | C．little more than | D．more or less |
Efforts to stop smoking in public areas _______ progress in Hangzhou in recent weeks.
| A．made | B．have been made | C．have been making | D．are making |
Some economists predict that the dollar will remain weak _______ economies abroad are expected to grow faster than that of the United States.
| A．while | B．as | C．before | D．until |
Advertisers are increasingly cautious about taking out ads _______ children, and that is hurting children’s magazines.
| A．being aimed at | B．aimed at |
| C．having aimed at | D．having been aimed at |