【推荐1】Someone in the classroom must have h________ (隐藏) my schoolbag.

【推荐2】I think my iPad ________ (hide) by my mother just now. I can’t find it anywhere.

【推荐3】There are many valuable chances ________ in the challenges. Open your eyes to find them and catch them. (hide)

【推荐1】Andrew writes a ________ (每周的) letter to his parents in England.

【推荐2】Basketball was invented by a ________ (加拿大) doctor.

【推荐3】根据下列句子及所给的首字母，在答题纸上按题号写出各单词的正确、完全形式 (每空限填一词)。
1. It’s very important for teenagers to have enough sleep and eat h_________.
2. Put the piano there, with its back a_________ the wall.
3. Our city, Hangzhou, will be the host for the 2022 A_______ Games.
4. Paper cutting, a traditional folk art of China, requires good control of the s________.
5. The science teacher told us that water b________at the temperature of 100℃.
6. Tom threw a coin to see w________ he would pass the exam.
7. If the number of the cars keeps rising, the city traffic would get much b________.
8. Boys, you're not s________ to play football in the classroom.
9. Please look carefully at the corrections which the teacher has w________ in your article.
10. A similar event happened years ago. It’s true that history sometimes seems to repeat i_______.