The hurricane was________powerful that quite a lot of big trees in our town were knocked over last night.
| A．very | B．too |
| C．so | D．such |
I can not understand why the issue of Syria has become so complicated________I learn more from the media.
| A．after | B．before |
| C．while | D．when |
Mrs Black had such a wonderful time________she visited her friends in Sydney last year.
| A．when | B．that |
| C．which | D．as |
________it is，the boy never seems to be able to finish it off.
| A．However interesting a book |
| B．Whatever interesting a book |
| C．How interesting a book |
| D．What an interesting book |
Air pollution is getting more and more serious，so we must take action________it is too late.
| A．before | B．after |
| C．until | D．when |
The idea has been widely accepted Beijing Opera should be added to the basic education in China.
| A．/ | B．when | C．which | D．that |
It was five o’clock in the afternoon _____ they climbed up to the top of the mountain.
| A．since | B．when | C．that | D．until |
—Do you know Mary very well?
—Yes. We became good friends_____ we met at a meeting.
| A．by the time | B．the first time | C．until | D．as long as |
Europeans always hold their fork in the left hand, ________Americans switch it between their left and right hands.
| A．before | B．because |
| C．while | D．since |
________on a clear day，far from the city crowds，the mountains give him a sense of peace.
| A．Walked | B．To walk |
| C．Having walked | D．When he is walking |
—Are you ready for Spain?
—Yes.I want the girls to experience that________ they are
young.
| A．while | B．until | C．if | D．before |
As is reported, it is 100 years________ Qinghua University was founded.
| A．when | B．before | C．after | D．since |
That was really a splendid evening. It's years________I enjoyed myself so much.
| A．when | B．that | C．before | D．since |
It does not matter that you are a slow walker _____ you never walk backwards.
| A．as long as | B．as soon as | C．unless | D．until |
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