buckle up

Preview（腕試し）

Please guess the best answer.

What does the idiom buckle up mean?

A. to try hard

B. to put on your seat belt (in a car)

C. to put on your professional wrestling belt

Examples（例文）

It's best to buckle up every time you get into a car, even if you're going on a short trip to the convenience store.

Exercises （練習）

1. I usually go to bed at 12:30 a.m. and __________ at 9:00 a.m.

A. get up

B. power up

---

2. If you don't want to lose the data on your computer, you had better _________ that data regularly.

A. save up

B. back up

---

3. I tried to learn how to play the piano with my toes, but it was much too difficult. After three weeks of trying I __________ .

A. gave up

B. quit up