Had we better leave right away——It’s better_____for another five minutes.

You didn’t lock the back door.一You are wrong．I.

difficult questions the teacher is asking! Only a few students can answer them!

When shall we start the reconstruction of the historic building? — Not until our program ______ by the authority

The villagers here are very friendly. I am quite sure that you will get along well with them __________ you get to know them.