When he was still a child,He used _____ many question,some of which others could not answer.A.to asking B.to ask C.asking D.as
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When he was still a child,He used _____ many question,some of which others could not answer.A.to asking B.to ask C.asking D.as
When he was still a child,He used _____ many question,some of which others could not answer.
A.to asking B.to ask C.asking D.as
When he was still a child,He used _____ many question,some of which others could not answer.A.to asking B.to ask C.asking D.as
B,
used to do 表示过去常常做某事,而现在往往不做了
i used to get up early in the morning when i was still a hight school student.
be used to doing 表示习惯于做某事
i am used to eating rice now.
be used to do表示...被用来做某事
Pig Stem Cells to Be Used to Grow Human Organs?
B 过去常常 used to do
B
B used to do 过去常常
B
used to 意为“过去经常”,其中的 to 是不定式符号,而不是介词,所以其后只接动词原形(不能接动名词)。如:
He used to live in Paris. 他过去一直住在巴黎。
B
B,
used to do 表示过去常常做某事,而现在往往不做了