问题描述:
4.one and a half_____(apple/apples)____(谓语:单/复)
5.two and a half_____ ____
6.a half and one_____ _____\
7.a half ____ ____
5.two and a half_____ ____
6.a half and one_____ _____\
7.a half ____ ____
问题解答:
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