HÃY CHỌN MỘT ĐÁP ÁN ĐÚNG NHẤT (A, B, C HOẶC D) CHO MỖI CÂU SAU

Question

49. He found a watch in the street, and then he ________ to return it to the loser. A. had tried B. was trying C. tried D. had been trying

Answer

49. He found a watch in the street, and then he ________ to return it to the loser. A. had tried B. was trying C. tried D. had been trying