He ________ on winter mornings, but now he doesn’t.
A. used to swimming
B. is used to swim
C. used to swim
D. is used to swimming
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The drug proved ________.
A. highly effectively
B. highly effective
C. to be highly effectively
D. be highly effectively
The policeman entered the building, ________ upstairs.
A. looking around and to hurry
B. looking about and hurrying
C. looked about and hurrying
D. to look around and hurried
If you give up your plan, ________.
A. so will they
B. so they do
C. they will so
D. so did they
We would like you to know that we greatly ________ your timely help.
A. appreciate
B. thank
C. accept
D. admire
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