问题

Never before ___________in greater need of technical experts than it is today.
A:has Shenyang been
B:een
C:was Shenyang
D:Shenyang was
B:een
C:was Shenyang
D:Shenyang was
正确答案是:
同类题型
What you said just now____ the matter we are discussing.
_______ that we can’t get the necessary equipment, we will have to give up theexperiment
What’s the _________ of the car at present — It’s about 70 kilometers an hour.
As parents, it is wrong to ____________ your children when they’ve done something bad.