Some researchers believe that there is no doubt ________ a cure for AIDS will be found．

A．which

B．that

C．what

D．whether

He was hoping to go abroad but his parents ________ that they won't support him unless he can borrow money from the bank．

A．were deciding

B．have decided

C．decided

D．will decide

Danby left a word to my secretary ________ he would call again in the afternoon．

A．who

B．that

C．as

D．which

My brother is an actor．He ________ in several films so far．

A．appears

B．appeared

C．has appeared

D．is appearing

－Don't you think it necessary that he ________ to Miami but to New York?

－I agree, but the problem is ________ he has refused to．

A．will not be sent, that

B．not be sent, that

C．should not be sent, what

D．should not sent, what

Do you have any idea ________ is actually going on in the classroom?

A．that

B．what

C．as

D．which

________ people in the world are sending information by E-mail every day．

A．Several million

B．Many millions

C．Several millions

D．Many million

________ of the land in that district ________ covered with trees and grass．

A．Two fifth; is

B．Two fifth; are

C．Two fifths; is

D．Two fifths; are

Few pleasures can equal ________ of a cool drink on a hot day．

A．some

B．any

C．that

D．those

Dr Black comes from either Oxford or Cambridge, I can't remember ________．

A．where

B．there

C．which

D．that