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Studentsdon'talowanswersintheexam.A.tocopyB.copying为什么?

题目详情
Students don't alow_____answers in the exam.
A.to copy
B.copying
为什么?
▼优质解答
答案和解析
选B
allow vi.允许,准许
用法:
allow doing=allow sb. to do
allow for sth. 允许某事
allow doing sth. 允许做某事
They don't allow smoking here.=They don't allow others to smoke here
allow sb. to do sth. 允许某人做某事
(注意被动:sb. be allowed to do sth.)