问题

Mr.Morgan　can　be　very　sad＿＿，though　in　public　he　is　extremely　cheerful

A:by　himself 
B:in　person
C:in　private 
D:as　individual

正确答案是：

同类题型

1I haven’t got anarmchair_________. Will you make room for me?

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下列文学常识不正确的一项是：（）

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