There ____________ always three lights in every country: red

There ____________ always three lights in every country: red, yellow ____________ green.
[ ]
A. is; and
B. are; and
C. are; or
janis2006 1年前 已收到1个回答 举报

youtoofan 春芽

共回答了13个问题采纳率:100% 举报

B

1年前

1
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