Choose the best answer to complete these following sentences.
Charlie said, "You can come and stay with me if you are ever in London".
A. He said you could come and stay with him if you were ever in London.
B. He said I could come and stay with him if I were ever in London.
C. He said you can come and stay with him if you are ever in London.
D. He said I can come and stay with him if I am ever in London.
Đáp án: B
Dịch: Anh ấy nói tôi có thể đến và ở cùng anh ấy nếu tôi ở London.