Mr. Wang was such a good teacher _______ the students love and respect.

　 A. who 　 B. whom

　 C. that 　 D. as

　　 medicine works in a human body is a question 　　 not everyone can understand fully.

A.How;that　　　 B.That;which　　 C.What;which　　 D.What;that

Most of the artists ____________ to the party were from South Africa．［MET90］

A．invited B．to invite C．being invited D．had been invited

----Why does the Lake smell terrible?

----Because large quantities of water 　　　.

A. have polluted　　　 B. is being polluted　 C. has been polluted　 D. have been polluted

_____ a strange plant! I've never seen it before.　　　 　　　　

A. Which　　　　　 B. What　　　　　 C. How　　　　　 D. Whether

The light goes on and off.Is there a loose ________？

A．condition 　　　 B．limitation　　　　 C．connection 　D．attraction

It took a time to for the connection between body temperature and illness____.

A. to make　　　 B. to be made　 C. making　 D. being made

—When does our school often have a picnic??

—_______, it's at the end of October.?

　A. Sooner or later B. In general 　　 C. In other words　 D. In all?

Whenever I go to Beijing, ____ is quite frequent, I will go to visit the Great Wall.

A. where　　　　 B. which　　　　　　 C. as it　　　　 D. it

Life in the country is quite different from _______ in the city.

A. one       B. the one     C. that      D. which