—When can I use your computer?—Never! _______ should you touch it.
__________ a chance, we will visit Edinburgh a second time.
— Hi, Kathy. We’re going to have a party this Saturday. Will you come? — __________. What time?
It’s said ______ ______ was everything _______ Mr. Professor could tell us.
16. I returned home with some roses and only then __________ find my favorite vase missing.
15.She was lifting handfuls of fine sand and letting it pour __________ her fingers.