This letter is _____ _ England. [ ]
A. of
B. from
C. for
答案：B
Miss Green isn't in the office. she _____ to the library.[ ]
A. has gone
B. went
C. will go
D. has been
货物运输保单一般是（）。
A.不定值保险单
B.定值保险单
C.全损保险单
D.部分损失保险单
