Dogs are difficult to take care of还是to be taken care of?There are twenty trees to to plant还是be planted?We have twenty trees to plant?还是to be planted?为什么?这是什么知识点?

英语连词成句速度啊i, hear ,to ,look, too ,difficult ,are,dogs,after Are those dogs his?No,they don't.【改错】 英语好的进来（组成完整句子）1.don't ,her,why,you,ask,help,for______________________________________?2.take,dogs,not,to,care,difficult,are,of_____________________________________.3.Chinese,days,had,dictionary,I,for,have,two,the__________ Dogs are too difficult to take care of.这个句子的to take care of 做什么句子成分? most question is this difficult the连词成句dogs the zoo there there are in?这个是什麽呢？ these are dogs Barking dogs don’t There aren't ___ cats there,but there are ____ dogs. Dogs show their__ when they are angry.填一个词,t开头 We are dogs unleashed , aren't we? 是什么意思知道的说一下 很急 改错：1.He don't like watching TV 2.How much dogs are there/ Dogs are our friends.They are often t() to do many things fo us.Dogs are our friends.They are often t( ) to do many things fo us.求t开头的单词满足上述句子的一个填空? 英语翻译1 .I think a dog is a good pet for a 6-year-old child.2 Really?I don’t agree.Dogs are too difficult to take care of.3 Pot-bellied pigs make the best pets.4.Now she is too big to sleep in the house,so I made her a special pig house.5.The Dogs are too difficult to take care of.请问这个句子中的 of 可以省略吗?加上它有何意义? 我们课本上是Dogs are difficult to take care of.问：take care of 可不可以改成to be taken care of Hot dogs are as delicious as sandwiches.改成否定句和疑问句Hot dogs are as delicious as sandwiches.否定句“Hot dogs aren't as delicious as sandwiches. Dogs are our friends作文, Are those dogs?怎么回答