Question

【题目】My sister is very clever. She at the age of four.

A. can read by herself

B. could read by herself

C. is able to read by herself

D. was able to read herself

Answer 1

【答案】B

【解析】

试题分析：句意：我的妹妹很聪明。她在四岁时就能自己读书。根据时间状语at the age of four此句应用过去时态，排除A、C；“自己”此处应用by oneself，故选B。