问题标题:
下英语同义句It'snecessaryforthemtosupportandhelpeachotherbothbeforeandduringtheevent.(改为同义句)------------and------eachother-------------forthembothbrforeandduringtheevent.麻烦解释一下是用is还是
问题描述:
下英语同义句
It'snecessaryforthemtosupportandhelpeachotherbothbeforeandduringtheevent.(改为同义句)
------------and------eachother-------------forthembothbrforeandduringtheevent.
麻烦解释一下是用is还是are啦
艾金城回答:
(Tosupport)and(help)eachother(isnecessary)forthembothbrforeandduringtheevent.
分析:不定式,动名词等作主语时谓语动词用单数.
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