—Do you know_______for London tomorrow ? —At 6 o ’clock in the morming A. when he Ieft B. when is he leaving C.when he is leaving
I really want to know _______.
Now the air in our city is _______ than it used to be. Something must be done to stop it.
You’d better look up the new word in a dictionary _____ you don’t know it ?
If the question ________ incorrectly, _________ question will be given to you.