This machine is very easy _______. Anybody can learn to use it in a few minutes.
#90906
A
operating
B
to be operating
C
operated
D
to operate
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_______ the task on time, he was fired by the boss.
#98451
A
Not completed
B
Not having completed
C
Not have completed
D
Not being completed
(2013·哈尔滨四校高三统一检测)My mother went to the private school in person ________ that I would be safe there.
#89308
A
confirming
B
having confirmed
C
to confirm
D
confirmed
Anyway, the crowd around me were obviously enjoying their day out at the races, by their happy faces and the sense of excitement.
#90636
A
observing
B
judging
C
considering
D
inferring