根据问句选择合适的答语，把序号填在括号里.
I’m going toin the sea. A. swimming B. swim C. swims
you going to run the 100 metres? A. Is B. Are C. Am
情景问答。
I can ________ a letter. A.writingB.writeC.writes
A:Do you want some ______? A. meatB. appleC. egg
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