By the time he realizes he into a trap, it’ll be too late for him to do anything about it.
Land animals are believed ______ from sea animals.
The salesman said that ____ thief was a young man with ____ brown hair.
The work was ________ for the little boy. So we’d better lend him a hand.
Last night Li Ping watched the football match at home when he ________ his homework.
The policeman asked ________ with the old women.