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？

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

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

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

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

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