题目内容
（请给出正确答案）
[单选题]
It is desirable that water used for drinking（) pure.
A.were
B.should be
C.is
D.ought to be
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题目内容
（请给出正确答案）
A.were
B.should be
C.is
D.ought to be
答案
更多“It is desirable that water used for drinking( ) pure.”相关的问题
第4题
According to the author it is not desirable to ______ by traveling on foot.
A．lose the kind of experience
B．enjoy the present as a reality
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第5题
A.desirable
B.opposite
C.satisfactory
D.erroneous
第7题
It is highly desirable that a new president ________ to this college.
A) appointed
B) be appointed
C) was appointed
D) has been appointed
第8题
Some desirable changes have taken place in this town.
A.identical
B.uncertain
C.frequent
D.satisfactory
第9题
第10题
It is highly desirable that______(这个大学任命一名新校长) ．
第11题
The sputniks hanging from the ceiling are intended ________.
A．to watch the most desirable goods
B．to make films that can be used as evidence
C．to frighten shoplifters by their appearance
D．to be used as evidence against shoplifters
