—Catherine. I have cleaned the room for you.
—Thanks. You________it. I could manage it myself.
| A．needn't do |
| B．needn't have done |
| C．mustn't do |
| D．shouldn't have done |
Now in China some young people ______ important positions in the government．
| A．hold | B．seize | C．catch | D．grasp |
Generally speaking, prices of daily goods ______ through the Internet are lower than store prices．
| A．to buy | B．are bought | C．buying | D．bought |
The young man invited the lady to dance with him, but she ______ his invitation．
| A．turned off | B．turned out | C．turned down | D．turned away |
-- What’s your plan for this winter vacation?
-- I’ll take an express train to Dalian for my holiday ______ school ends．
| A．while | B．until | C．immediately | D．unless |
---Where did you get to know her?
--- It was on the farm ______ we worked．
| A．that | B．there | C．which | D．where |