It took them         time to finish the challenging task.
#71201
A
a number of
B
a lot
C
a great deal of
D
a good many
推荐题目
—Dick has a bad cough because of smoking.—Why doesn’t he      ?
#73298
A
give it up
B
give it in
C
give it out
D
give it away
       the bad weather, most of the crops are rotted away.
#66381
A
As the result of
B
As a result of
C
As a matter of fact
D
As a result