I have stayed home since I was sick. I have stayed home since I have...時間 I have stayed home since I was sick last Sunday. 自從我上星期日生病以來...
that is because he is sick和because he is sick的差異 "That is...finish this assignment? A1: Because Bebe was sick. A2: Stop blaming me - it is...
因為 sick 是形容詞 如果你不加 be, 你這句就沒有動詞, 降句子就不成立 那為什麼不加 is 要加 be 呢 因為 may 是助動詞, 助動詞後面加原形--> May be He may be sick= 他有可能生病了