Tom sat under a tree chatting with his friends and _____ his teacher, stood up in no time.
#96223
A
seeing
B
seen
C
saw
D
to see
推荐题目
Birds'singing is sometimes a warning to other birds________away.
#92175
A
staying
B
stayed
C
stay
D
to stay
These chairs may look good, but they’re very un-comfortable _____.
#90864
A
to sit on
B
to be sat on
C
sit on
D
sitting on
_________, the experiment is sure to succeed.
#90652
A
If carefully doing
B
If carefully done
C
If it done carefully
D
If it doing carefully
He got wellprepared for the job interview，for he couldn't risk________the opportunity.
#88480
A
to lose
B
losing
C
to be lost
D
being lost