The staff in the library are friendly and _______.
A. efficient
B. effective
C. affective
D. affectionate
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The shoes I bought two days ago have not been _______ yet, which makes me very anxious.
A. sold
B. delivered
C. priced
D. bought
I don’t believe you can type 100 words _______. You are too fast.
A. per day
B. every week
C. every minute
D. an hour
_______ is a telephone that you can carry with you and use to make or receive calls wherever you are.
An earphone
B. A microphone
C. A cellphone
D. Headphone
Buyers can _______ about products on the Internet before they buy them in a shop.
A. find for
B. find against
C. find out
D. give out