He___but could___nothing.A.looked;see B.saw;look C.watched;see D.saw;watch

He___but could___nothing.A.looked;see B.saw;look C.watched;see D.saw;watch
He___but could___nothing.A.looked;see B.saw;look C.watched;see D.saw;watch

He___but could___nothing.A.looked;see B.saw;look C.watched;see D.saw;watch
选 A
look 和watch 是瞬间动词 正在看 正在观察
see是 结果动词 看到了什么
又因为watch是及物动词 这边没有宾语,只能选look

C

A
look指有意识地看
see指看见/看不见
watch 指看电视/比赛

A
look强调看的这个动作，see强调看到的东西。