题型：单选题题类：常考题难易度：普通

Mr.Smith, together with his two sons,_____Shanghai for about five months.

A、has left B、has been away from C、have left D、have been away from

举一反三

—She is fine.

—Wonderful. A lot of useful advice on self protection .

{#blank#}1{#/blank#} the keys {#blank#}2{#/blank#} the sofa?

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