He observed a stranger _______ around the store at 12 p.m. last night.
—What do you think of his opinion?—Nobody has given me _____ piece of advice.
What is the way George thought of _______ enough money to buy the house?
—Some wine?—Thank you. _______. I have to drive home.
—Excuse me, but could you please tell me the way to the gas station around here?—Sorry. There isn’t gas station nearby, I'm afraid.
Space exploration began in the 1960s, and since then about five hundred people into space.