He worked late last night, ______, early this morning.
| A．that is | B．even worse | C．or rather | D．namely |
You have to wear a helmet and a life jacket for protection, just ___ you fall into the water.
| A．in case | B．unless |
| C．though | D．as |
Wuhan lies _____ the Changjiang River and the Han River meets.
| A．which | B．wherever |
| C．that | D．where |
nation uses nuclear weapons will engage the whole world in war.
| A．Whichever | B．Whatever |
| C．No matter what | D．No matter which |
You are asked to attend the meeting ______ in the hall this weekend.
| A．being held | B．held |
| C．to be held | D．holding |
When ____ to danger and conflict, men tend to increase blood pressure, ____ nervous or anxious.
| A．exposed; feeling | B．exposing; felt |
| C．exposed; felt | D．exposing; feeling |