Can you tell me ____________ —She is in the computer lab.

–Would you permit me ______here?- Sorry, we don’t permit _____ here in the reading room.

What time will Mr. Brown be back to China – Sorry, I don’t know______.

The traffic rules say drivers mustn’t drive if they are drunk, _______they will be punished.

_______ difficulties we may com across, we’ll help one another to overcome them