You may ask the teacher for help ____ difficulty

I saw Mr. Wang at school just now.–You ____________ make a mistake. He has gone to Shanghai and won’t get back until next Monday.

As we all know, Asia is _____ Europe.

We don’t have enough pens ,Give us .

e me, Sir, but could you tell me how to go tothe railway station―Sorry. You’d better ask, I’m afraid, ______ is anative.