._____ has been announced, we shall have our final exams nextmonth.
____ our teacher will allow ____ early after examination?
Not until the heavy snow blocked the express ____ how serious the weather was.
—Where did you see your friend? —It was in the super market ____ I was doing shopping.
Grandma will appreciate ____ if her elder sister could come back from abroad.
Statistics show that men have ___ as women do for every mile they drive.