题目内容

【C17】______

A. to
B. for
C. of
D. on

查看答案
更多问题

【C20】______

A. but
B. then
C. them
D. for

【C18】______

A. from
B. against
C. away
D. off

【C10】______

A. because
B. since
C. when
D. for

【C16】______

A. unless
B. before
C. thus
D. until

答案查题题库