问题标题：
1.It's8:00a.m.Theshopmustbe____(开着的)asusual.2.Thankyouverymuchfor_____(给)meyourpen.3.Ifyouknowhow______(answer)theteacher'squestions,pleaseputupyourhands.4.Therearemany______(kind)ofbooksinthebookshop.
问题描述：
1.It's8:00a.m.Theshopmustbe____(开着的)asusual.
2.Thankyouverymuchfor_____(给)meyourpen.
3.Ifyouknowhow______(answer)theteacher'squestions,pleaseputupyourhands.
4.Therearemany______(kind)ofbooksinthebookshop.
胡白燕回答：
1.It's8:00a.m.Theshopmustbe_open_(开着的)asusual.
此处open是形容词,adj.开着的,营业着的
2.Thankyouverymuchfor__giving_(给)meyourpen.
for是介词,后面用动词时用ing形式
3.Ifyouknowhow_toanswer__(answer)theteacher'squestions,pleaseputupyourhands.
疑问词how加动词不定式,howtodo如何做,howtoanswer如何回答
4.Therearemany_kinds_(kind)ofbooksinthebookshop.
manykindsof许多种.
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