It’s time we ____some measures to solve this problem.A、must takeB、will takeC、tookD、have

It’s high time we ______ him a regestered letter.A. sendB. sentC. has sentD. had sent

Its time that we ______ firm measures to protect our environment.A．have takenB．tookC．are t

We talked about our time together in London and it really______some fond memories.A．brough

It s getting rather late. It s time we______ home.A．are goingB．wentC．goD．must go

For some years after his graduation, he ______ some of his classmates, but as times we

We had given ourselves so little time to get to the airport that it was______ whether we s