d I have a word with you, mum— Oh, dear, if you ______.

Don’t you know your computer has been infected with viruses?— Really, no wonder it hasn’t ________ as well as before. [ ]

If you go on doing so, you’ll __________ yourself sooner or later.

Why are you looking for Mary in a hurry, John —The boss is wondering where she _______ and how long she _______ there.

He is so addicted to smoking that ________seems to be no chance of talking him into quitting.