【正文】
__. 4. — _____ Xu Kexin in Class 3? — Yes, ______ ______. is twelve is England is is Is Is isn’t is China Sam is is not is in she is be 動詞用法兒歌 我用 am, 你用 are, is 連著她他它, 單數(shù)名詞用 is, 復(fù)數(shù)名詞全用 are。Complete the conversation. Jack: Hi, my name is Jack. What’s your name? Lingling: Hi, Jack. _______ Lingling. Where are you from? Jack: I’m __________ England. ___________________? Lingling: I’m from China. _________ are you? Jack: I’m thirteen. How old are you? Lingling: I