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

Its dark outside now. Dont you think its about time______？A．we were going homeB．we go home

Its getting rather late. Its time we______.A．are goingB．wentC．goD．must go

It was not the first time she ______ in the exam. I think its high time we ______ the trut

Its already dark now. Dont you think its about time______？A．we are having dinnerB．we have

Now that we have lost all the documents, its no use______me and saying its all my fault.A．

________could ride bicycle at that time.A．Only me