(2012·辽宁高考)This machine is very easy ________. Anybody can learn to use it in a few minutes.
#89010
A
operating
B
to be operating
C
operated
D
to operate
推荐题目
 His spare time is made full use_______ law. 
#90272
A
to study
B
study
C
of studying
D
of to study
 The landslide occurred at midnight, killing five people and ________ seven others ________.
#88760
A
leaving;injured
B
leaving;injuring
C
left;injured
D
left;injuring