— Do you know where Miss Gao is? I couldn’t find her anywhere.— She ________ have gone far, for her coat is still here.

Any information one wants to know about the coming National Games in Shenyang, just call 024- 62347788. It ________ be simpler. 

— It’s the office! So you        know eating is not allowed here.— Oh, sorry.

We ______ the difficulty together, but why didn't you tell me?

“No student,”the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission. ”