– I won’t go to the concert tonight because I ________ my ticket.– What a pity!A. have lost B. will lose C. lose
His close friend _____ for two years.
There was a rainstorm yesterday. The flood _____ the old bridge over the small river.
She finished the work _____ as soon as possible. She’s very happy now.
—Do you know him? —I’m sure I’ve seen him _____, but I can’t remember the right place.
What can we students do _____ the environment?