English is my favourite subject, and I _____

试题详情及答案解析: English is my favourite subject, and I ______ it.
A. am good for
B. am good at
C. does well i; 答案：B; 试题分析：句意：英语是我最喜欢的科目，我擅长英语。be good at="do" well in，擅长···。因为主语是第一人称，故排除C，故选B。
考点：考查动词短语。