I left for the office earlier than usual this morning ______ traffic jam.
| A．in line with | B．for the sake of | C．in case of | D．at the risk of |
Sally worked late in the evening to finish her report ____ her boss could read it first thing next morning．
| A．so that | B．because | C．before | D．or else |
The tiger, once a animal to humans, is now of disappearing on the earth.
| A．dangerous, danger | B．dangerous, in danger |
| C．in danger, in danger | D．danger, in danger |
On holidays, they prefer to _____ at home rather than _____.
| A．staying, going hiking | B．stay, going hiking |
| C．stay, go hiking | D．staying, go hiking |
—Hey! What's the rush?
—The plane ________ at 4∶00 and I need to see my uncle off.
| A．takes off | B．will take off | C．has taken off | D．took off |
----Would you like to join me for a quick lunch before class?
---- _________, but I promised Nancy to go out with her.
| A．I’d like to | B．I hate it | C．I don’t | D．I will |