Never before ______made so great achievements in developing new technology of communication.
A: we have
B: did we
C: have we
D: do we
A: we have
B: did we
C: have we
D: do we
举一反三
- I think this is the first time that we have met.( )anywhere. A: Each other have we seen never before B: Never before have we seen each other C: Never before we have seen each other D: Before have we never seen each other
- —— You have an English class every day except Sunday.——（ ） A: So we have B: So we do C: So have we D: So do we
- We have to do another experiment today, ____?: did we|don’t we|have we|shouldn’t we
- Before we move, we should _____ some of the old furniture, so that we can have more room in the new house.
- To tell you the truth, never before ______ seen so many candidates competing for so few vacancies our company has to offer. A: (A) we have B: (B) we had C: (C) have we D: (D) had we