____ we is known to all,English is not very difficult to lea

____ is known to all,china is a developing country. It is very difficult to make correct ____(决定)all the time AS IS KNOWN TO ALL English is very difficult .We need to work( ) at it every da to learn English well is very difficult.同义句 it,very,difficult,to,is,well,learn,english,him,for English is difficult to learn 1.There is no ____ on Mars,____ is known to all. we all think to watch an english film is very interesting 改为 填空：Our English teacher is k____ to us.We all like her very m 用适当形式填空 We all think his advice is very ____(help) to our En as it is known to all与as is known to all与it is known to all