Before he fell into the river, he took hold of a small tree on the bank by______.
A. inspiration
B. instance
C. instinct
D. instruction
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He is very rich, so he______.
A. must make a fortune
B. should have made a fortune
C. must have made a fortune
D. should make a fortune
The TV advertising______ against the destruction of the rainforests in South America has drawn attention from millions of people.
A. act
B. campaign
C. conduct
D. movement
The new regulation does not______until the first of March.
A. take into account
B. go into effect
C. carry into practice
D. put into operation
Mary is a conscientious student; she works very hard and is______to her teachers.
A. respected
B. respectable
C. respectful
D. respecting