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
Martin’s gone to ______ the children from school.
#75880
A
collect
B
get
C
cover
D
care
Mary has _______ a difficult question to me.
#81254
A
put
B
asked
C
made up
D
set
Shall we _______ our discussion and have some tea or coffee?
#82896
A
break down
B
break off
C
break into
D
break out