问题

I think it ______that one have a good command of English if one wants to be engaged in international trade.[ ]

A: useful
B: a must
C: essential
D: vital

正确答案是：

同类题型

I wish that you _____ such a bad headache because I’m sure that you would have enjoyed the concert.

Where are you going for your winter holiday— I’m going to visit Kunming. It is ______ too hot _______ too cold.

There are hundreds of visitors _____in front of the Art Gallery to have a look at Van Gogh’s paintings. [ ]

When will you leave for Beijing—It’s___________ the weather.

The Great Green Wall will stop the windfrom ____ the earth away.