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
The parents feel hopeless when their son has_____ internet games for so long.
#83901
A
accustomed to
B
addicted to
C
been accustomed to
D
been addicted to
   Is this the piano _______ your familoy for over eighty years?
#77134
A
belonged to
B
belongs to
C
belonged
D
belonging to