18.He__________to see what I meant, though I explained again and again.
A. wondered
B. was unwilling
C. fell
D. failed
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19.Your plan__________quite all right, but is it practicable?
A. hears
B. sounds
C. feels
D. looks like
20.We should__________fully the importance of this new policy.
A. understand
B. know
C. learn
D. research
21.Marry looked pale. She said had a__________headache.
A. light
B. little
C. slight
D. obvious
22.Tom talked loudly when others were asleep.__________, it was impolite..
Accordingly
B. Suddenly
C. Slightly
D. Obviously