Viết lại câu sao cho nghĩa của câu viết lại không đổi với câu gốc

printed before it.
37. I can't phone her because I don't know her phone number.
→If
38. My sister can speak English better than me.
→ I can't
39. I've never tasted pleasant before.
→ This is the first time
40. Mary asked me "Can you tell me why you are so sad?"
→ Mary asked me if