（）盘（束）发和晚装盘（束）发是礼节性发型。
A.休闲
B.婚礼
C.艺术
D.生活
参考答案：B
—Have you ever been to Shanghai, Mary?
—Yes. I ______ there for three days with my parents last year. [ ]
A .have gone
B. have been
C. went
D. was
This also keeps the air，soil，water crops________ chemicals.
A．out of
B．out from
C．free of
D．rid of
