Tim was reading a book at office. Someone knocked on the door. He opened the door.____  .
"My name is Rebecca," said the lady. "You've got to help me!"
"Take it easy." ____ "What happened?"
"My grandma died last month. She left all her money, about $1,000,000 to me. She told me she had saved the money in a bank.____ . "
"But yesterday when I went to the bank, I only got an envelope with nothing in it. he money is gone!"
Rebecca took the envelope out of her handbag and gave it to Tim.
Tim looked at it carefully under the light. It was just an envelope with two old stamps on it. ____ 
“Don't worry, Rebecca," he said. "Your money is still here.”

    Club sports — for those just like sports

    Many colleges have established many club sports, ____ to meet a special interest or fill a gap ____ an intercollegiate(校际的) team is not available. Some of sports, like fencing, crew and rugby, are sometimes ____ (compete) for club members. They are often played with other colleges and sometimes with community groups. These clubs give you the opportunity ____(play) a sport you love or learn a sport that is new to you. The one drawback(缺点) to club sports is ____ colleges often don't fund(提供资金) them. In these cases, club members have to work hard to organize fund-raisers and collect money to keep their sports ____(go).

    Club sports are less time-consuming ____ other athletic items, and you can easily miss a practice or even a competition if your academic or work commitments are ____(particular) demanding at a certain point. You can also leave a club sport if you find it just isn't working out. However, it's ____ (worthy) it to stick with a club sport for a while.

    Most colleges have a full range of teams, so you can attend sports competitions year-round. At bigger schools, larger sports, like football and basketball, may attract fans from all over the area. ____(small) sports, however, will also attract a group of fans.

直线l将圆x²+y²﹣2x+4y=0平分，且在两坐标轴上的截距相等，则直线l的方程是（　　）

下列关于生物圈概念的描述，错误的是（　　）