812. go to bed: đi ngủ

813. wrong = incorrect: sai, không đúng.

818. planning: là dạng phân từ I của động từ "to plan". Do là động từ có một âm tiết, kết thúc bằng một phụ âm trước nó là một nguyên âm nên ta gấp đôi phụ âm trước khi thêm đuôi "ing".

Cấu trúc với "to plan":

- to plan to do something - lên kế hoạch làm gì.

- to plan for something - lên kế hoạch cho cái gì.

819. supply somebody with something = provide somebody with something: cung cấp cho ai cái gì.

supply something for somebody = provide something for somebody: cung cấp cái gì cho ai.

WORKS		- He works for an engineering company.
		- My father often works until midnight.

BED		- go to bed: đi ngủ		It’s time to go to bed, honey.
		- make the bed: dọn giường		My little daughter now can make the bed herself.

WRONG		- I’m afraid that your answer is wrong.
		- This is the wrong way to go to the supermarket.

MAIN		- What do you want for the main course?
		- You should note down the main points of his presentation.

UNIT		- Which unit are you studying?
		- Family is the basic unit of the society.

GEORGE		- Have you seen George?
		- George is one of my best friends.

HIT		- She was hit by a falling tree.
		- He used to hit a ball in football practice.

PLANNING		- Do you know what they are planning to do?
		- Are you planning for your holiday trip?

SUPPLY		- What kinds of products do they supply?
		- They will supply food for us during the journey.

SYSTEMS		- heating systems: các hệ thống lò sưởi		They are repairing the heating systems of the house.
		- educational systems: các hệ thống giáo dục		The educational systems vary from country to country.