题目内容
单词填空:用介词under for,by,in,on填空。
1.Mary lives ________ the fifteenth floor of Block B.
2.Many sea animals live ________ the streams, rivers and seas.
3.It's a wonderful world ________ the water.
4.I bought this bag ________ 8 pounds.
5.I go to school ________ bike every day.
答案:on;in;under;for;by
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