问题描述：
1.Have you known Dr.Jackson for a long time?yes ,since she ----the Chinese Society.
A has joined B joins C had joined D joined
2.Americans eat -----vegetables per person today as they did in 1990
A more then twice as many B more than twice C twice as many as D As twice as much
3.how are you getting on with your classmates?
----------.I have got to know them all.
A V ery good B far better C much pleased D very comfortable
由于为没有财富了,
A has joined B joins C had joined D joined
2.Americans eat -----vegetables per person today as they did in 1990
A more then twice as many B more than twice C twice as many as D As twice as much
3.how are you getting on with your classmates?
----------.I have got to know them all.
A V ery good B far better C much pleased D very comfortable
由于为没有财富了,
问题解答：
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