He is busy preparing for the speech,so he cann’t help_____the experiment with usHe is busy preparing for the speech,so he can’t help_____the experiment with us.A.carry out B.carrying out C.carried out D.with carrying out为什么选A.我知道can

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He is busy preparing for the speech,so he cann’t help_____the experiment with usHe is busy preparing for the speech,so he can’t help_____the experiment with us.A.carry out B.carrying out C.carried out D.with carrying out为什么选A.我知道can

He is busy preparing for the speech,so he cann’t help_____the experiment with usHe is busy preparing for the speech,so he can’t help_____the experiment with us.A.carry out B.carrying out C.carried out D.with carrying out为什么选A.我知道can
He is busy preparing for the speech,so he cann’t help_____the experiment with us
He is busy preparing for the speech,so he can’t help_____the experiment with us.
A.carry out B.carrying out C.carried out D.with carrying out
为什么选A.
我知道can't help to do sth 表示不能帮忙做某事,我觉得这里是不能帮忙做某事,为什么省略了to?
Weather_________(permit),we’ll go to the countryside and enjoy the fresh air.
为什么填permitting,为什么要用-ing形式?

He is busy preparing for the speech,so he cann’t help_____the experiment with usHe is busy preparing for the speech,so he can’t help_____the experiment with us.A.carry out B.carrying out C.carried out D.with carrying out为什么选A.我知道can
HELP 后的动词不定式可省去TO,一定要记住,又如
He often help me (to )clean the floor.

HELP 后的动词不定式可省去TO