As is reported, it is 100 years _____ Qinghua University was founded.
| A．when | B．before | C．after | D．since |
The production of cars of this company has increased ______ 300, 000 a year, but the sales of new cars have fallen ______ 20 percent this year.
| A．to; with | B．to; by | C．in; to | D．in; by |
The newly-built lab is ______ the old one.
| A．three times so big as | B．as three times big as |
| C．three times bigger than | D．three times the size |
Millions of people have been forced to leave their homes ______ the heavy storms and floods.
| A．apart from | B．as a result | C．in regard to | D．due to |
Our club is open to adults only. ______ your children have entered without permission.
| A．There seems to be | B．It seems to be |
| C．There seems that | D．It seems that |
He _____ have gone to Shanghai, for I saw him a moment ago.
| A．must | B．can’t | C．mustn’t | D．can |