指出下列句中主语的中心词 ④ To do today's homework without the teacher's help is very difficult。[input=type:blank,size:4][/input]
举一反三
- 指出句中主语： To do today's homework without the teacher's help is very difficult.
- 指出下列句中主语的中心词 ① The teacher with two of his students is walking into the classroom.[input=type:blank,size:4][/input]
- 标明下列句子中划线单词的成份To do today’s homework without the teacher’s helpis very difficult.To do today's homework without the teacher's help
- 指出下列句中主语的中心词 ② There is an old man coming here。[input=type:blank,size:4][/input]
- 指出下列句中主语的中心词 ③ The useful dictionary was given by my mother last year。[input=type:blank,size:4][/input]