It is fun _ on the Internet in our spare time为什么要填surfing （正确答案是surfing) 有类似的句型也说下好吗？

i think it is on the sofa (改为否定句） i _ _ it _ on the desk. 4.句型练习1.To go fishing is fun.(句意不变)_ is fun _ _ fishing.2.It look me two hours to do my homework yesterday.(句意不变)I _ two hours _ my homework yesterday.3.The boy was not tall enough to reach the book on the shelf.(保持原句 I think it is fun ( ) on the moon.A.walkB.to walkC.walkingD.walked what great fun it is ____ (sit )on the balcony I am very busy on Friday At 8;00I have math I it is not fun The teacher says it is usI am very busy on Friday At 8；00I have math I it is not fun The teacher says it is useful but I think it is difficult Then at 9:00 I have science It is difficult b It is fun _(climb) hills ( )Do you knock who they are waiting _ the bus stop?A.for at B.for C.at D.for on( )_it is to help the old men clean the house!A.what a fun B.how great fun C.how great a fun D.what fun( )Milly _ her tortoise because it moves _.A.like;slow B.love;slowl because the art is fun,so i like it改错 It is fun _ on the Internet in our spare time为什么要填surfing （正确答案是surfing) 有类似的句型也说下好吗？ The film is very _(fun). it is fun to look at the posters when I finish _ them A make B makes C making D to make The flower on the desk is _the teacher.是什么意思?is 后面是 to吗？The bag is _ heavy that I can't carry it.是什么意思？The bag is _ heavy that I can't carry it.是什么意思？ We like traveling by car.It is fun to drive our car _ the quiet country and _ the busy city.A.on,through B.across,in C.through,across D.across,through 初三语法题!急!高手进入(⊙o⊙)哦1.The teacher agreed _ us _ the test papers home.A.to let,to take B.to let,take C.letting,take D.let,take2.It is _ to go fishing or to go swimming.A.fun B.a fun C.funs D.funny3.---I don't know _ . It is fun _________(lie) in the sun on the beach Dear I am very busy on Friday.At 8:00 I haDear I am very busy on Friday.At 8:00 I have math .It is not fun .The teacher says it is useful ,but I think it is difficult .Then at 9:00 I have science .It is difficult but interesting .At 10:00 I have hist This book is _(I)._(your) is on the desk. I am very busy on Friday.At 8:00 I ...改为第三人称I am very busy on Friday.At 8:00 I havemath.It is not fun.The teacher says it is useful,but I think it isdifficult.Then at 9:00 I have science.It is difficult but interesting.At10:00 I have hist