问题:
[单选题]
Directions: For each blank in the following passage,there are four choices markedA,B,Cand
D.Choose the one that is most suitable and mark your answer by blackening the corresponding letter o
A.
to
B.
with
C.
by
D.
for
试题来源参考:成人高考专升本,英语真题试卷,英语答案,英语历年真题,英语模拟试卷,成人高考专升本入学考试