— Me, too.

    A few years ago, I was about fourteen or fifteen years old. One1, my parents went out for a walk after dinner. So I stayed at home alone watching TV. Later I heard my cat, Aster, meowing(喵喵叫) at the2. She was a funny and proud cat. She was good3catching mice and sometimes, she would like to show me her "prize". I went over to4the door. She ran in quickly with5in her mouth. After she dropped it on the floor, I found it was a mouse ,again. It was6dead. My mother always liked to keep the floor7.so I had to find something to pick the mouse up and8it away.

When I came back, I found the mouse9. I looked everywhere but couldn't find10. We had a basement(地下室)11the house, so there were so many places and holes for it to stay. I12 looking for it at last. But that was not the13of that. About a year later, I was helping my mom14 up the basement. And you can guess what we saw. Yes, some bones(骨头) of a dead mouse. We could only believe and hope that it was that mouse. The one ran away from the floor on that night. We really hoped so15no one wants a house full of mice.

—No, it's ________ next week.

The old man is eighty years old.

They the last stage of their to the West Lake of Hangzhou.

—________________.

—Both. Then I can give one lo my brother and leave _______ lo myself.

①I (have/has)told him the news.

②She (have/has)come back from school.

③Did you (won/win)the first prize yesterday?

④There is a farmer (called/calling)Tom.

⑤It doesn’t need (to be/being)true.

⑥Her job is (to clean/cleaned)the streets.  

⑦I (beat/won)him in the tennis game yesterday.

⑧ Has he (visited/visiting)the Great Wall?

⑨I can’t afford (buying/to buy)the building.

⑩ Class begins.  Stop (talking/to talk).

（1）我打算今晚查看我的电子邮件。

I'm going to     tonight.

（2） 在星期四上午, 王老师打算为我们上钢琴课。

Miss Wang is going to lesson for us morning.

（3）——你愿意加入舞蹈俱乐部吗?

——是的, 我愿意, 但是我每天有很多的作业要做。

—Would you like   the Dance Club?

—Yes, I'd love to. But I have lots of homework   every day.

（4）——你想要其他的东西吗?

——不, 谢谢。

—Would you like   ?

—No, thanks.

（5）吉姆喜欢周末独自待在家。

Jim likes at home at the weekend.

There are many around Oxford.

In October 2019, the finalists met their scientists and other students face to face at 3M's special science center in St. Paul, Minnesota. The students their views in the group, and the winners were announced.

Kara Fan from California won the big for a special liquid bandage she created. It can be sprayed on cuts and . One important part of Kara's bandage is nano –silver (纳米银)—silver in extremely any form. Kara had to do a lot of research to get that part just right. For winning, Kara got $25,000.