You must ______ your cigarette when you are at the gas station.
---Do you know _______?---At the end of July.
--Where have you _______ all day?--- I came back at noon and I _______ in this office since then.
---Mike seldom has breakfast at home, _______?--- _______ this morning.
Your opinion is considered to be _______ great value _______him.
---Will you go with us for an outing on Saturday?--- I’d like to, but I am really busy these days. I can’t _______ a whole weekend.