找答句，填序号 (每小题1分, 共10分）
I liveBeijing. A. inB. forC. at
-- is your dog? – It’s behind the desk. A. WhatB. HowC. Where
Heplaying basketball. A. amB. isC. are
Looking my books. A. on B. at C. to
Daming ismusic. A. listening toB. listen toC. listening
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