Tom had a horrified ________ on his face when we showed him the snake.
A. expression
B. morality
C. contradiction
D. distinction
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The relation between the two countries is ________ of improvement.
A. able
B. can
C. capable
D. like
The FBI has ________ the criminal to Chicago.
A. after
B. searched
C. traced
D. Run
As he isn’t here, I ________ that he must have missed the train.
A. sure
B. suppose
C. certain
D. doubt
They are making telephone ________ about a new product.
A. inquiries
B. requests
C. requirements
D. researches