问题

The companies are working together to create _____they hope will be the best means of transport in the 21st century.

A:which
B:that
C:what
D:Who

正确答案是：

同类题型

your brother Daniel in Class 1, Grade 7—No, he’s in Class 2.

Will people live on the moon— .

In modern times, people have to learn to ______ all kinds of pressure although they are leading a comfortable life.

Would you like ________ of tea

Having questioned the spy for two days, the officer didn’t ______ any valuable information. [ ]