We can count ____________ his help whenever we are in trouble.
A. on
B. for
C. over
D. from
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We planned to cross the river at night but ____________.
A. reached
B. succeeded
C. tried
D. failed
According to him, a series of discussion_________ held about the project.
A. is
B. Are
C. was
D. were
Elephants would ____________ if men were allowed to shoot as many as they wished.
A. bring up
B. die out
C. cut out
D. put up
The output of our company is now three times_________ it was three years ago.
A. what
B. that
C. as
D. which