高中语法综合练习1

题目

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

答案

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...