题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

For a $2 ticket, people have a chance to win the Mega Millions(超级百万) record－breaking lottery jackpot of $1.6 billion. The drawing(开奖时间) is on Tuesday night in the United States. Players also have a chance at winning the Powerball jackpot(强力球头彩), 1. is now up to $620 million. That drawing will be on Wednesday night.

Mega Millions is a lottery game played in 44 American states. The winning ticket must match six numbers, from 1 to 70. Several states permit online ticket purchases. The first Mega Millions drawing was on May 17, 2002. That winner received a jackpot of $28 million—a small amount 2. (compare) to this week's jackpot. The most recent Mega Millions drawing on October 19 was for a jackpot of $1 billion dollars. But no one 3. (win). It was the 25th drawing in a row that did not result in a winner.

About 280 million tickets 4. (sell) for the October 19 drawing. Those tickets covered 60 percent of all possible number combinations. So, what are your chances of winning the $1.6－billion jackpot this time? Very, very small.

The financial website The Motley Fool says the chance of someone winning the Mega Millions jackpot is 1 in 302，575，350. The chance is a little better with the Powerball. It is 1 in 292，201，338. You are much 5. (likely) to get accepted to Harvard University. The Ivy League school accepted 5 percent of its 39，000 6. (apply)  for its 2021 class. That is 7. 1 in 20 chance.

Americans even have a better chance at becoming president 8. they do at winning this week's jackpot. The U．S. population is about 326 million. There are about 10 presidents in an average lifetime, 9.  a person's chances at becoming president are 1 in 32.6 million. However, the U．S. Constitution requires that a person be at least 35 years old and a “natural born citizen” 10. (elect) president.