It is desirable that water used for drinking( )pure.
A、
were
B、
should be
C、
is
D、
ought to be
【正确答案】:B
【题目解析】:
本题考查虚拟语气,it is desirable that后面要用虚拟语气,should do,选B。句意:饮用的水应该是纯净的,这是可取的。
It is desirable that water used for drinking( )pure.
were
should be
is
ought to be
本题考查虚拟语气,it is desirable that后面要用虚拟语气,should do,选B。句意:饮用的水应该是纯净的,这是可取的。
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