The pilot, whether ______ or design, made the plane do a sharp turn.
| A．by accident | B．at times | C．suddenly | D．all at once |
_________ the wind and the sun, the color on the board gradually ran.
| A．Being exposed to | B．Having exposed | C．Exposing | D．Exposed to |
It is proposed that another meeting _______ to discuss how to give more support to the underdeveloped area.
| A．be held | B．have been held | C．was held | D．will be held |
_________ I picked up the receiver, I realized that someone had dialed the wrong number.
| A．The moment | B．A moment ago | C．After a minute | D．Minute after |
Snow is rare in this area. You can hardly see any snow, ________ it is winter.
| A．ever since | B．now that |
| C．even though | D．even so |
The prices have been rising all the time, especially that of housing. So it is high time the government _______ action to solve it.
| A．takes | B．have taken | C．took | D．to take |