高中语法综合练习149.--Did you see Tom?He said he would come back for supper at six o'clock.---He seems ( ) with his friends in the lakeA.to swim B.to be swimming C.to have swum D.swimming
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高中语法综合练习1
49.--Did you see Tom?He said he would come back for supper at six o'clock.
---He seems ( ) with his friends in the lake
A.to swim B.to be swimming C.to have swum D.swimming
B.
因为:
seem to be doing sth表示不定式的动作和主句中seem是同一个时态,比如,He seems to be doing his homework.他好像正在做作业;
seem to do 表示不定式的动作发生在主句动词seem之后,比如It seems to rain.好像要下雨了.rain的动作,是发生在seem之后的;
seem to have done sth表示不定式的动作发生在主句动词seem之前,比如 she seems to have finished her homework.她好像做完了她的家庭作业.finish的动作发生在seem之前
B
高中语法综合练习149.--Did you see Tom?He said he would come back for supper at six o'clock.---He seems ( ) with his friends in the lakeA.to swim B.to be swimming C.to have swum D.swimming
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