There______ three boys in the classroom.A. is B.are C. have
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
I___ see.It's very dark. A.can B.can't C.do
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