题目内容
The boy found a wallet on the ground and stopped _________.
A.picking it up | B.picking up it | C.to pick it up | D.to pick up it |
C
stop to do sth 表示停下去做另一件事,同时,pick ···up为动词+adv的情况,如果其宾语为人称代词时,需位于二者之间,故选C
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