--Why does the river smell terrible?
--Because large quantities of water__________.
A.have polluted | B.is being polluted | C.has been polluted | D.have been polluted |
The doctor recommended that you___swim after eating a large meal
A.wouldn’t |
B.couldn’t |
C.needn’t |
D.shouldn’t |
It never occurred to me ___you could succeed in persuading him to change his mind
A.which |
B.what |
C.that |
D.if |
___some people regard as a drawback is seen as a plus by many others
A.Whether |
B.What |
C.That |
D.How |
Though___to seeus,the professor gave us a warm welcome
A.surprising |
B.was surprised |
C.surprised |
D.being surprised |
Listening to loud music at rock concerts___caused hearing loss in some teenagers
A.is |
B.are |
C.has |
D.have |