Mr.Green (teaches) English in our school.He can (swim) and he can also help kids with (swimming).Jill (sings) very well.She wants to be a good (singer) in the future.Jim likes kids very much,and he ho...为啥要这样填Mr. Green (teaches，三单形式) English in our school. He can (swim，情态动词can的后面是原形) and he can also help kids with (swimming，在介词后用doing). Jill (sings，三单形式) very well. She wants to be a good (singer，歌手，名词) in the future. Jim likes kids very much, and he hopes he will be a good (teacher，老师，名词). He can swim so he wants to help the kids (to swim，帮某人做，是不定式).We want three good (violinists，三位小提琴家，复数) to teach. I have two (pianos，两架钢琴是复数）in my room.