----Why did you go back to the shop?-----I left my friend______there.

You had better_________because you have to drive back home.

As far as I am concerned，education is about learning and the more you learn，________.

–What’s the noise ? It sounds as if it comes from upstairs.   --______. It must be the window-cleaner working , next door.         

“______,” the soldier screamed loudly, who held a gun in his hands, “or I will shoot again!”