问题标题：
【1.Areyouafraidof____(be)alone?2.Whyareyoulookingso__(worry)?3.Remember__(bring)yourhomeworkheretomorrow.】
问题描述：
1.Areyouafraidof____(be)alone?2.Whyareyoulookingso__(worry)?
3.Remember__(bring)yourhomeworkheretomorrow.
刘铁根回答：
1.being
介词of后面接动词的ing形式.
2.worried
lookworried看起来焦虑/着急
3.tobring
remembertodosth记得做某事
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