At no point south of the Han River ______
问题:
At no point south of the Han River ______ more than a mile.
A. the enemy didn't advance
B. the enemy advanced
C. did the enemy advance
D. didn't the enemy advance
At no point south of the Han River ______ more than a mile.
A. the enemy didn't advance
B. the enemy advanced
C. did the enemy advance
D. didn't the enemy advance