Complete each sentence with a suitable word, beginning with the letter given

I. Complete each sentence with a suitable word, beginning with the letter given. (1m)
1. We are advised to b---------- early if we want to get a room.
2. The microgravity makes astronauts w --------.
3. You should follow the r------------ if you want the dish to turn out right.
4. After t---------- , please remain seated until the aircraft comes to a standstill outside the terminal building.