Whentheycametoaforest,theysuddenl

发布时间：2020-07-10 17:42:12

When they came to a forest, they suddenly heard somebody ________ for help.













A.called












B.to call











C.calling











D.calls

网友回答

C解析C(hear为感观动词，后面接动词原形和动词-ing形式。)
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