Question

--As for Mr Brown, do you know          ?
--Sure.  Canada.  But he has been teaching French for two years in Shanghai.
A. where he is working       B. where he comes from      C. where is his motherland

Answer 1

B

考查宾语从句的用法。宾语从句要使用陈述语序，先排除C；根据答语，他目前在上海工作，A项的显然合题意，也就是说，他来自Canada。故选B。