听录音，选出所听到的内容。（
I ____ chopsticks for my mother.A.thought B. bought C. caught
I want my mother sto buy a new bike ____ me.A. to B.for C. by
_____ you have a nice trip to Beijing?A.Do B.Are C. Did
live with ____ mother and father.A.we B.us C. our
--What are you doing? ---- I am _____ a letter.A.sending B. writing C.Both A and B
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