We worked all night, _____ for the coming procession. 
#98012
A
to prepare
B
preparing
C
prepared
D
was preparing
推荐题目
It is no use       without taking any measures.
#89736
A
cry
B
crying
C
to cry
D
cried
_______ from the moon, our earth, with water _______seventy percent of its surface, appears a blue ball
#94101
A
Seen; covered
B
Seeing; covering
C
Seen; covering
D
Seeing; covered
Are you good at                 ?
#95477
A
swim
B
swimming
C
to swim
D
swam