After completing and signing it, please return the form to us in the envelope _______.
#91566
A
provided
B
providing
C
having provided
D
provide
推荐题目
 _____ what would happen,none of them could find a way out. 
#90766
A
Left wondering
B
Having left wondering
C
Leaving to wonder
D
Having left to wonder
This machine is very easy______. Anybody can learn to use it in a few minutes. 
#90027
A
operating
B
to be operating
C
operated
D
to operate
In order to improve English, _______.
#94062
A
Jeo’s father bought her lots of tapes
B
Jeo bought lots of tapes for herself
C
Lots of tapes were bought by Jeo
D
Lots of tapes were bought by Jeo’s father