A. have left
B. had left
C. leaves
D. was left
Chọn đáp án B
Diễn đạt thì quá khứ trong các mệnh đề thời gian:
S + Ved/2 + when/until/before/as... + S + Ved/2
Dịch: Khi viên cảnh sát đến hiện trường, người điều khiển ô tô đã bỏ đi.
When I (1) _________ a little boy I used to wander in the woods by the river flowing (2) _________ my village. In spring, I (3) _________ watching a variety of bushes and plants grow in the sunlight and listened to newly-born birds chirp in their nest high on the trees. In summer, I (4) _________ watch different kinds of kites fly high in blue sky and listen to buffalo boys play their bamboo flutes (5) _________ they rode their water buffaloes.
(1)