第1个回答 2007-05-13
1. Are the students cleaning the classroom? No, they aren't.
2. What are you doing now?
3. What is Tom doing?
4. Is.../
5. is growing
6.说话,演讲
be动词嘛就是am, is, are
第2个回答 2007-05-13
1.Are the students cleaning the classroom?
No,they aren't.
6.“说”的意思。但一般用与说某种语言.
现在进行式:be动词+动词现在分词(即动词的ing形式)
一般疑问句:若句中出现be动词或助动词,则直接提到句首,其他结构均不变.
若句中没有出现be动词或助动词,则直接在句首根据时态加助动词.同时动词要恢复原形.
be动词:即am is are was were等.需根据不同的人称,时态而变化.
第3个回答 2007-05-13
1.Are the students cleaning the classroom?
Yes,they are.No,they aren't.
2.what are you doing?
3.what is Tom doing?
4.Is Helen washing clothes?
5.My parents is growing older and older.
6.说话,演讲
be动词就是am, is, are
第4个回答 2007-05-13
1. Are the students cleaning the classroom? No, they aren't.
2. What are you doing now?
3. What is Tom doing?
4. Is.../
5. is growing
6.说话,后面常接语言,如English,对外国人说话等也用这个
be动词就是am, is, are,过去时是was,were,后接动词现代分词或过分
第5个回答 2007-05-13
1Are the students cleaning the classroom?
2.Who is playing the football in the playground?
What are you doing in the playground?
Where are you playing football?
What are you playing in the playground.
3. Who is reading books in the study?
What is Tom doing in his study?
Where is Tom reading?
4. Is/was Helen washing clothes?
5. 5My parents are growing older