The bad weather made ____ difficult for the birds ______.
| A．it; migrate | B．that; migrate | C．that; immigrate | D．it; to migrate |
_________ English can be difficult to learn, it is a very useful tool for communication.
| A．As | B．When |
| C．While | D．Because |
Years of hard work almost made him ________________.
| A．break up | B．break out |
| C．break down | D．break off |
—What would you like to do next? Go skating?
—Well，______ . I am not so skilled at it. I hate to be black and blue all over.
| A．That’s the last thing I’ll do． |
| B．It’s up to you |
| C．I can’t agree more． |
| D．You can say that again! |
Crops died of drought for ____________ water.
| A．lack | B．lacking of |
| C．a lack | D．lack of |
It’s wise to handle the ____________ between nations in a peaceful way.
| A．condition | B．control |
| C．confusion | D．conflict |