We had better to review this lesson carefully because we will have some questions on it.30/30Wehad better toreview this lesson carefullybecausewewill have some questions on it.(A) To review(B) Carefully(C) Will have(D) OnGiải thíchChọn đáp án A ⇒ review Giải thích: had better + V nguyên thể: nên làm gì