This lesson is interesting .This lesson is helpful.合并成一句

This lesson is interesting .This lesson is helpful.合并成一句 This is _____ first lesson. This is --------first English lesson. Lesson One is interesting.Lesson Two is more interesting.合并成 This lesson is easy..(改为同义句) this is their (one) english lesson 1.this is an ___(educate)lesson This is our _____(one) lesson this is their (two)english lesson This is our second English lesson是什么意思 this is the third lesson同义句 This is an Art lesson怎么翻译