介词
（北京卷29）. Would you mind not picking the flowers in the garden? They are everyone's enjoyment.
| A．in | B．at | C．for | D．to |
The girl didn’t know who ______ for the broken vase.
| A．will be blamed | B．blamed | C．was to blame | D．blames |
______ with the size of the whole earth, the highest mountain does not seem high at all.
| A．When compared | B．While comparing |
| C．Compare | D．Comparing |
-- How long do you think it will be ______ the bus arrives here?
-- No more than five minutes.
| A．when | B．before | C．since | D．after |
Making a proper choice ______ the future will probably make much difference in our life.
| A．concerning | B．to concern | C．concerned | D．having concerned |
In Canada, cross country skiing is a popular sport among people ______ they can enjoy excitement and adventure.
| A．that | B．where | C．whom | D．which |