21. In the first paragraph, what does “pick them up” mean?
(A) Choose them to do something.
(B) Give them a ride to some place.
(C) Find trouble with them in particular.
(D) Help them feel more awake.
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統計: A(7), B(3), C(2), D(91), E(0) #3912472
統計: A(7), B(3), C(2), D(91), E(0) #3912472