It is desirable that the automation equipment_running as muc
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It is desirable that the automation equipment_running as much of the time as possible.
A.would be kept B.must be kept C.will be kept D.should be kept
A.would be kept B.must be kept C.will be kept D.should be kept
D正确.
解释:
这是一种虚拟语气.语法规则如下:
It is/was desirable (important, essential, necessary, advisable, imperative, obligatory, preferable, natural, vital, 等形容词) 后面是that 从句时,从句中的谓语动词常用 should + 动词原形.其中should 可以省略.这类形容词通常表示“建议”或“有必要”.
解释:
这是一种虚拟语气.语法规则如下:
It is/was desirable (important, essential, necessary, advisable, imperative, obligatory, preferable, natural, vital, 等形容词) 后面是that 从句时,从句中的谓语动词常用 should + 动词原形.其中should 可以省略.这类形容词通常表示“建议”或“有必要”.
It is desirable that the automation equipment_running as muc
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