He was ______ a book for his birthday.

Tina,the daughter of Mr.Smith,was born ______ April last year.

The shop owner told the driver ______ his car.

——______ bike is this?——I guess it's William's.

Would you like to visit Peter with ______ this weekend?

He is not using his phone, ______?

I took out my wallet,but there ______ no money in it.

I am excited ______ we are going to the Great Wall tomorrow.

I can't come out tonight ______ I've got too much housework.

My daughter was in her last year of high school. She wanted to have some adventures before she (21)______ the school.She took an adventure class.This was a classwhere (22)______ climbed to different heights.They began at 35 feet and (23)______ up from there.When she told me this,I was (24)______.I knew she was afraid of heights.She came home and told me her first climb didn't go (25)______.She went up the 35-foot pole. She said she was fine (26)______ up the pole.When she got up there,she realized she had to (27)______ on a line to get to the other side. She looked down and saw how far she was from the (28)______ .She felt frightened and began to (29)______.She said she had never felt this fearful in her (30)______ .She was so afraid that she couldn't move and (31)______ to come down.When her feet (32)______ the ground,she started to cry.She didn't want to (33)______ the class.She had no choice but to do all the other climbs.She didn't let (34)______ hold her back. She was able to finish the class with 12 climbs.She got an A. I'm so (35)______ of her.请回答第21空