题目

 The little boy still needs the _____ 20 dollars to do with some things _____. A. remaining; remained to be settled B. remaining; remaining to be settled C. remained; remained to settle D. remained; remaining to settle 答案:B4.如图,用4个边长为3分米的正方形拼成一个大长方形,它的周长是多少分米?
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