To improve the quality of our products, we asked for suggestions _____ had used the products.
| A．who | B．whoever |
| C．which | D．whichever |
Telephone users sometimes complain about unreliable service andthey consider unfair charges.
| A．which | B．that | C．what | D．how |
I really appreciateto drive me home，but I am afraid that I have to finish my work first now.
| A．you to offer | B．it you offer |
| C．your offering | D．this you are offering |
Many people like to talk about generation gaps. I don’t think there isin my family, though.
| A．it | B．some | C．none | D．one |
The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.
| A．concerns | B．assumption | C．occupations | D．ignorance |
There is no doubt that the Diaoyu Islands are _______ part of China and what some Japanese have done recently is actually ________ offence against Chinese people.
| A．a; / | B．a; the | C．the; / | D．/; an |