How do I know?

1. Nouns
A word that refers to a ​person, ​place, thing, ​event, ​substance, or ​quality.
Compound Nouns
Compound nouns are words for people, animals, places, things, or
ideas, made up of two or more words. Most compound nouns are made
with nouns that have been modified by adjectives or other nouns.
Compound nouns are sometimes one word, like toothpaste, haircut, or
bedroom. These are often referred to as closed or solid compound
nouns.
Sometimes compound nouns are connected with a hyphen: dry-
cleaning, daughter-in-law, and well-being are some examples of
hyphenated compound nouns.
Sometimes compound nouns appear as two separate words: full moon,
Christmas tree, and swimming pool are some examples of compound
nouns that are formed with two separate words. These are often
referred to as open or spaced compound nouns.

22. The End

27. The End

28. Wh-questions
1. Where is the nearest restaurant?
2. Why is the restaurant closed?
3. When is Carlos coming?
4. What is the problem?
5. How are the sick students?
6. Who are those people?
Indirect questions
1. Could you tell me where the nearest restaurant is?
2. Can you tell me why the restaurant is closed?
3. Do you know when Carlos is coming?
4. Could you tell me what the problem is?
5. Can you tell me how the sick students are?
6. Do you know who those people are?
To be

29. Wh-questions
1. Where does she study?
2. Why does she study English?
3. When does Heather start school?
4. What do they want?
5. How often do they go to downtown?
6. Where can I find a fast food restaurant?
7. When can Manuel come to my office?
Indirect questions
1. Could you tell me where she studies?
2. Can you tell me why she studies English?
3. Do you know when Heather starts school?
4. Could you tell me what they want?
5. Can you tell me how often they go to downtown?
6. Do you know where I can find a fast food restaurant?
7. Could you tell me when Manuel can come to my office?
Auxiliaries