You needn't hurry because there is a delay of about two hours.
A.There is a delay of about two hours and therefore you mustn't hurry.
B.It is not necessary for you to hurry because there is a delay of about two hours.
C.It is not possible for you to hurry because there is a delay of about two hours.
D.You mustn't hurry because there is a delay of about two hours.

Viruses are organisms that are much smaller than bacteria and about which very little is known.
A.Not much is known about viruses, which are much smaller organisms than bacteria.
B.Very little is known about viruses or bacteria except that they are very small organisms.
C.Not much is known about bacteria, but they are much larger organisms than viruses.
D.Very little is known about bacteria, but viruses are much larger than they are.

I expect the new trend will soon ____ here.
A.take up
B.catch up
C.catch on
D.identify with

The Continental United States is ________ that there are four time zones.
A.so a big area
B.very big
C.much big
D.so big an area

.................beautiful flowers!
A.What a
B.What
C.How
D.So

A.laugh
B.plough
C.enough
D.cough

He has little spare time
A.free
B.occupied
C.busy
D.filled

How excellent the girl is !
A.What the excellent girl !
B.What an excellent girl !
C.What about an excellent girl !
D.What for an excellent girl !

Antarctic blue whales can be 100 foot long and weigh more than any dinosaur that
ever lived.
A.can be
B.100 foot long
C.more than any
D.dinosaur

Shall we go to the sports centre this weekend?
A.Why should we go to the sports centre this weekend?
B.Why don’t we should go to the sports centre this weekend?
C.Why don’t us go to the sports centre this weekend?
D.Why don’t we go to the sports centre this weekend?