The pronoun" They" in the second line of the last paragraph refers to all of the following
A. personal connections
B. laws and rules
C. social influence
D. wealth
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I can't______ this type of computer, it's too expensive.
A. cost
B. spend
C. afford
D. trade
I remembered______the door before I left the house.
A. locking
B. lock
C. to lock
D. locked
The students were assigned different tasks according to their______abilities.
A. respectful
B. respectable
C. respective
D. responsible
We found that the plane_____ when we got to the airport.
A. already took off
B. had already taken off
C. was already taking off
D. was already taken off
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