5. Meg: Dora ,________you busy this Saturday evening? Dora: No, I________ free. What's up?(A) a
問題詳情
5. Meg: Dora ,________you busy this Saturday evening? Dora: No, I________ free. What's up? (A) aren't ; am not (B) are ; am not (C) aren't ; am (D) do ; am not