My son has piano _____ every week.
( )（2） He is a manager ___ a big company .A. on B. in C. at
( )（1） My grandfather is ____ taxi driver .A. a B. an C. none
给下列单词选择正确的中文翻译。
( )（5） We love ____ father and mother .A. us B. we C. our
( )（4） There ___ three people in my family .A. is B. are C. none
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