If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike.454/462 If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike.Nhập câu trả lời ở đây0/3000 ký tựXác nhậnGiải thíchD (could ask → can ask)