____ several times, the young scientist still kept on doing his experiments.
#92897
A
Having failed
B
Having been failed
C
Failed
D
To fail
推荐题目
Would you mind ____him the news ? I want to give him a surprise .
#93514
A
not tell
B
not to tell
C
not telling
D
don’t tell
Don’t use words ,expressions or phrases __________ only to people with specific knowledge.
#95791
A
being known
B
to be known
C
known
D
having been known
In the job interviews applicants often find themselves ______ unexpected questions, some very difficult to answer.
#93501
A
asked
B
asking
C
to be asked
D
to ask
With the machine ____, she couldn't keep her eyes ___ in bed.
#97823
A
burning, closed
B
burnt, close
C
to burn, closed
D
being burnt, close
_____ an important decision more on emotion than on reason, you will regret it sooner or later.
#93898
A
Based
B
Basing
C
Base
D
To base