问题
选择题
His father told me that he _____ for the United States three days _____.[ ]
A. has left; ago
B. had left; ago
C. left; ago
D. had left; before
答案
答案:D
His father told me that he _____ for the United States three days _____.[ ]
A. has left; ago
B. had left; ago
C. left; ago
D. had left; before
答案:D