Shall we meet at six o’clock?We had better meet a little late. Let’s_______ seven o’clock.
You needn’t worry ____ about your Maths. Work harder and you will do better.
---It seems that Mr. Wu is standing there. ---It ________ be him because he called me from Canada just now.
---Mr Johnson asked me to remind you of the meeting this afternoon. Don’t forget it!---OK, I _________.
Can you tell me _____?
Please don’t smoke here. The sign _______ “No smoking.”