问题补充:
She isn’t her sister Tina.
A. more smarter than
B. so smarter as
C. more smart than
D. as smart as
答案:
A. more smarter than
B. so smarter as
C. more smart than
(答案→)D. as smart as
解析:形容词smart的比较级是smarter,故排除C;A选项中more不能放在比较级前面,而so…as中间应该用形容词的原级,故应排除B。所以本题选D。