—I phoned you at 5:00 yesterday afternoon, but nobody answered me.—Sorry. I the flowers in the garden at that time.
Mr. Lee looks pale. After all, he has lost lots of ________ in the accident. A. drugs B. blood C. support
The street is so dirty that we can see litter ________. A. everywhere B. somewhere C. nowhere
-- Thank you for giving me so much help! -- ________ A. It’s a pleasure. B. It doesn’t matter. C. It’s fun.
The air pollution is serious, ________ we must try our best to reduce it. A. so B. or C. if
--The river used to be clean. How does it become dirty? -- There are many factories ________ waste water into it. A. pouring B. pour C. poured