下面的简便运算正确的是（ ） A．（2.5×1.25）×8=2.5×8-1.25

词语运用（10分）
用方框中所给出的词的正确形式填空，使短文意思通顺、正确、连贯。方框中有两个词是多余的。

much，study，swim，win，have，say，be，good，see，start，friend，hour

Wang Ping 小题1: born in 1991 in Shanghai. She swims very 小题2:and she is now 小题3: in our school. She hopes to become a member of the national team. She 小题4: swimming when she was five. At that time she swam for an hour every day, but no w she trains for several(几个) 小题5: at school each day. She really enjoys 小题6: . When talking about her lessons, she 小题7: studying is very important. She hardly ever goes out with her小题8: , so she has 小题9: time to train. In fact, she 小题10: little free time but she thinks it is worthwhile(值得的).