Many people stood near the bus stop nervously waiting .A. to pick upB. picking upC. to be

问题补充：

Many people stood near the bus stop, nervously waiting .

A. to pick up

B. picking up

C. to be picked up

D. being picked up

答案：

A. to pick up

B. picking up

(答案→)C. to be picked up

D. being picked up

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