According to a UN report, some 844 animals and plants ______ in the last 500 years.
Every morning Helen goes for a jog, with her dog ________ after her.
Only after they had discussed the matter for a few hours _______a decision
We the postcards yesterday, but it didn’t arrive.
—A new film will be on tonight. Will you go to see it?—If you don’t go , .
—I’d like to invite you to dinner this Saturday, Mr. White.— .