I’m progressing in physics ____ the teacher’s well-organized teaching and exact explanation．
| A．because | B．as a result | C．as | D．as a result of |
The chairman, together with the older leaders, stood on the Tian’anmen Tower , _________ the parades _________along the Chang’an Avenue.
| A．watched, being marched | B．watching , marching |
| C．watches, marching | D．matching, being marched |
The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves.
| A．since | B．when | C．before | D．unless |
My friend Mary is _________beautiful girl, _________girl everyone likes to work with.
| A．a , a | B．a , the | C．the, a | D． the , the |
Believe it or not, that is _______ we have dreamt about for twelve years.
| A．when | B．which | C．why | D．what |
You haven’t answered my question _______ I can join in the game tonight.
| A．if | B．whether | C．which | D．that |