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 joined2.Americans eat -----vegetables per person today as they did in 1990A more then twice as many B more than twice C twice as ma

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 joined2.Americans eat -----vegetables per person today as they did in 1990A more then twice as many B more than twice C twice as ma
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,

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 joined2.Americans eat -----vegetables per person today as they did in 1990A more then twice as many B more than twice C twice as ma
1 D
完成时句子中常跟since/for等状语,since引导的时间状语从句中用一般过去时,表示在过去某个时间内做的事、动作,所以选joined（过去时）
2 C
几倍于 twice/three times/four times as ..(形容词原形） as..
vegetables复数表示是可数名词,所以用as many as
所以选C
3 B
far + 形容词或副词的比较级,表示“远远地更...”
get well along with 与..相处很好
回答也要用well,或至少副词,所以very good/very comfortable/much pleased都错
far better (better可以是good/也可以是well的比较级）,表示好极了