问题描述：
根据所给首字母补全单词
1.Please put your hands in f( ) of your body.
2.Shanghai is s( ) of beijing.
3.There are two s( ) up onto the bus .
1.Please put your hands in f( ) of your body.
2.Shanghai is s( ) of beijing.
3.There are two s( ) up onto the bus .
问题解答：
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