问题

The companies are working together to create_____ they hope will be the best means of transport in the 21st century
A:what
B:that
C:which
D:who
B:that
C:which
D:who
正确答案是:
同类题型
We will do what we can to get the goods _________ ontime.
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Father finally came back home, which I ___ forward it
Jane studies chemistry ________ asking the teacher________ help.
How the loans are paid should be of little concern to the bank they are paid on time