—Our teachers and parents always warn us not to smoke.—Yes, actually, the risk of heart disease is a powerful argument ____ smoking.
You can hardly imagine the difficulty the woman had ______ her children.
Only one of the places is ________
--- Thank goodness, you are here ! What ____ you ? ---- Traffic jam.
Naturally, after I told her what to do , my daughter _____ go and do the opposite .
They had a pleasant chat _____ a cup of coffee.