He has been an active _____(参加者；参与者) in the discussion.
举一反三
- -Where is your father?-He ________ Australia and he ________ Sydney for two weeks. A: has been to;has been in B: has gone to;has been in C: has been in;has been to D: has gone to;has been to
- He has ________ been to Shanghai , has he ?
- He _____ articles for our newspaper these three years, and he ____ about thirty articles. A: has written, has been writing B: is writing, has been writing C: has been writing, wrote D: has been writing, has written
- China has been one of the active _________ (facilitate) in the development of world economy.
- Why has Don been missing work A: He has been job hunting. B: He has not been feeling well. C: His daughter has been sick. D: His specialist changed locations.