There will be less pollution _____ more people use public transportation.

I suggest you delete the useless files on the computer which _______ too much space

I can never forget the day ___ we spent together in the summer camp．—Well, especially the day _______it suddenly began to rain in the middle of the night．

Never count on him to make any complaint to the manager. He is really ________.

What’s left in the bottle standing on thetable________