题目内容：

Sunrise Hike

Saturday, October 21, 6:45 am---7:45 am

Enjoy sunrise from the hilltop as you learn about wildlife, plants, history and forest. Ages 8 and up; under 18 with an adult. To register (报名)by phone, call 630-933-7248.

Meet in the parking lot on the west side of Greene Road south of 79th Street. Dress for the weather, wear comfortable shoes and bring water.

Trick Or Treat

Saturday, October 28, 9:00 am---11:30 am

You and your family are invited to join the YMCA for a Halloween hike up Badger Mountain! Make sure to wear your Halloween costumes (戏装)!

Free shirts for the first 200 kids registered. Remember to take away your shirt by 11:30 am or it will be given away.

Cost: Trick or Treat is a FREE event.

Discovery Hike

Thursday, October 26, 1:00 pm---4:00 pm; Ages 3-8

Fall is pumpkin time. Listen to a pumpkin story and learn how pumpkins grow. Then we will head out on the path in search of a little pumpkin just for you and maybe, we will find the great pumpkin along the way. $7 per child.

Harvest Day Camp

Monday, October 31, 8:00 am---5:00 pm

Harvest Camp is an opportunity for children aged 5-13 to find the wonder of autumn at Keystone Science School and enjoy all the fun the Halloween season offers. We’ll explore the ways our natural environment has changed from summer to fall. As always, our programming is focused on building skills, knowledge and confidence. Cost: $0.00.

1.What do these activities have in common?

A. They are designed only for children.

B. They are held in a mountain.

C. They are to celebrate Halloween.

D. They all take place in autumn.

2.In which activity might children get free clothes?

A. Sunrise Hike

B. Discovery Hike

C. Harvest Day Camp

D. Trick Or Treat

3.What can children do on the last day of October?

A. Listen to a pumpkin story.

B. Hike with their parents.

C. Enjoy the beauty of autumn.

D. Learn about wildlife and forest.