This machine is very easy      . Anybody can learn to use it in a few minutes.
#94917
A
operating
B
to be operating
C
operated
D
to operate
推荐题目
She was the only one __________ the wreck.
#88269
A
surviving
B
having survived
C
to survive
D
survived
 _____ the meeting himself gave them a great deal of encouragement.
#98334
A
The president will attend
B
The president to attend
C
The president who attending
D
The president's attending
I wonder why he didn’t do it as ______.
#95383
A
told him
B
he told
C
telling to
D
told to
 ________ by the advances in technology, many farmers have set up wind farms on their land. 
#98404
A
Being encouraged
B
Encouraging
C
Encouraged
D
Having encouraged