It is urgent that immediate measures______to stop the situation.A．are takenB．were takenC．b

However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be taken by the engineer in chargeWhat dose “it” mean in the sentence above？

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It is undoubted that There is no doubt that什么意思

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It is necessary __________ the book immediately.A、that he returnsB、his returningC、for hi

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Is it necessary （)the book immediately？A．for him to returnB．that he returnsC．his returni

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It is necessary that something urgent______ to combat smuggling.A．is doneB．be doneC．has to

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What is Roberts view on Al Gores idea？A．It is urgent for us to do something.B．It is too la

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Our quarrel with efficiency is not that it gets things done but that it is a thief of time when it

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