题目

September 4 was my first day at Philips Academy, my new school. it was also my 18th birthday.  I received a warm ___41___ from my host family ― the Steins. Gena was my host mum, and her daughter Lily would also be a new ___42___ at Phillips. They took me to the school and ____43____ me around the campus.  On our way to my dorm (学生宿舍), we saw a huge truck delivering a student’s bag to her room. Many students at the school were very  ___44____, and they would fill their dorms with decorations. But I was ___45___ not to because I thought it was a ___46___ of time and money.  I had5．定义新运算△，已知a△b=$\frac{{a}^{2}}{{b}^{2}}$，则方程2△（-3）-3x=0的解是x=$\frac{4}{27}$．