Viết lại các câu với các từ được đưa ra
1.The blue hat is more exepensive than the yellow one.
-The yellow hat is...........................................
2.We will have a vacation that lasts for three months.
-We will have a...............................................
3.I have more friends than my sister.
-my sister has.............................
4.American students have more vacation than vietnamese students.
-Vietnamese students..................................
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