-Have you known Dr.Jackson for a long time?-Yes,since she () the chinese society.A has joined B joined选择一项并说明不选另一项的理由
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![-Have you known Dr.Jackson for a long time?-Yes,since she () the chinese society.A has joined B joined选择一项并说明不选另一项的理由](/uploads/image/z/5281516-28-6.jpg?t=-Have+you+known+Dr.Jackson+for+a+long+time%3F-Yes%2Csince+she+%28%29+the+chinese+society.A+has+joined+B+joined%E9%80%89%E6%8B%A9%E4%B8%80%E9%A1%B9%E5%B9%B6%E8%AF%B4%E6%98%8E%E4%B8%8D%E9%80%89%E5%8F%A6%E4%B8%80%E9%A1%B9%E7%9A%84%E7%90%86%E7%94%B1)
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-Have you known Dr.Jackson for a long time?-Yes,since she () the chinese society.A has joined B joined选择一项并说明不选另一项的理由
-Have you known Dr.Jackson for a long time?
-Yes,since she () the chinese society.
A has joined
B joined
选择一项并说明不选另一项的理由
-Have you known Dr.Jackson for a long time?-Yes,since she () the chinese society.A has joined B joined选择一项并说明不选另一项的理由
选B~根据提问者的意思,我们可以确定,回答的这句话应该是表示一段时间的结构.join是个非延续性动词,只能用一般过去式,所以选B.如果想选A,应该改为has been in.
B
since从句中要用一般过去时态
since 后跟时间点,不能是延续性的
选B
B