Page 87 - PowerE-L05-A

Lesson 19
Vocabulary p.75
1. A. be in doubt about something
2. C. group
3. A. purposely
4. A. dangerous
5. A. easy

Grammar p.75
1. to play (use an infinitive to be parallel with the other object in the sentence)
2. grammatically (use an adverb to describe how the action should be done)
3. at (use ‘at’ to indicate the field)
4. (no need for an article for more than one entity)
5. talented (use a past participle to describe the complement)
Exercises p.76
1. out
2. safety
3. team
4. crowded
5. to go
Reading Comprehension p.77
1. B.
2. A.
3. A.
4. B.
5. A.
Lesson 20
Vocabulary p.79
1. latest
2. primarily
3. dual
4. purpose
5. steaming
Grammar p.79
1. Game (subject must agree with verbs)
2. How (use the adverb of manner, not a relative pronoun)
3. Find (use the present form of the action verb when coupled with ‘do’)
4. Close (use the base form of a verb when making a request or command)
5. the Internet (you are referring to a particular noun)
Exercises p.80
1. Primary
2. Collapse
3. Install
4. Threatens
5. TV
Reading Comprehension p.81
1. B. from a throwaway sale
2. A. game machine
3. Three
4. Cooler
5. Speaker Satellites

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