26.They are going to see a film tomorrow.（对画线部分提问）What are they going to see tomorrow?
27.I like collecting stamps and singing.（改为否定句） I don’t like collecting stamps and singing.
28.He often cleans his bedroom.（改为一般疑问句）Does he often clean his bedroom.
29.Liu Tao is watering flowers in the garden.（对画线部分提问）What is Liu Tao watering in the garden.
30.David and Mike are going to planting trees this afternoon.（对画线部分提问）What are David and Mike going to plant trees this afternoon.
31.He did his homework in the classroom.（改为否定句） He didn’t do his homework in the classroom.
32.Wang Bing is heavier than Gao Shan.（对画线部分提问） Who is heavier than Gao Shan?
33.Tom jumps as far as Mike.（改为否定句） Tom doesn’t jump as far as Mike.
34.I see a man behind me.（改为一般过去时）I saw a man behind me.
35.Helen is good at singing.（同义句）Helen does well in singing.
36.The boy can jump higher than the girl.(改为否定句) The boy can’t jump higher than the girl.
37.It is hot in summer in New York.（对画线部分提问 How is the weather in summer in New York?
38.Liu Tao needs some pencils.（改为否定句）Liu Tao doesn’t need any pencils.
39.She is an English girl.（变为复数） They are English girls.
40.They are our women doctors.（变为单数）She is my woman doctor..
因为有的句子没有划线部分,根据自己的经验帮你回答了.另外,你的题中有一处错误30题中to的后面应该用动词原形. 26.They are going to see a film tomorrow.（对画线部分提问）What are they going to see tomorrow?
27.I like collecting stamps and singing.（改为否定句） I don’t like collecting stamps and singing.
28.He often cleans his bedroom.（改为一般疑问句）Does he often clean his bedroom.
29.Liu Tao is watering flowers in the garden.（对画线部分提问）What is Liu Tao watering in the garden.
30.David and Mike are going to planting trees this afternoon.（对画线部分提问）What are David and Mike going to plant trees this afternoon.
31.He did his homework in the classroom.（改为否定句） He didn’t do his homework in the classroom.
32.Wang Bing is heavier than Gao Shan.（对画线部分提问） Who is heavier than Gao Shan?
33.Tom jumps as far as Mike.（改为否定句） Tom doesn’t jump as far as Mike.
34.I see a man behind me.（改为一般过去时）I saw a man behind me.
35.Helen is good at singing.（同义句）Helen does well in singing.
36.The boy can jump higher than the girl.(改为否定句) The boy can’t jump higher than the girl.
37.It is hot in summer in New York.（对画线部分提问 How is the weather in summer in New York?
38.Liu Tao needs some pencils.（改为否定句）Liu Tao doesn’t need any pencils.
39.She is an English girl.（变为复数） They are English girls.
40.They are our women doctors.（变为单数）She is my woman doctor..
因为有的句子没有划线部分,根据自己的经验帮你回答了.另外,你的题中有一处错误30题中to的后面应该用动词原形.