How ___ trees do we need to produce enough oxygen ... | GrammarQuiz.net

Topics: How much and how many

How ___ trees do we need to produce enough oxygen for a person?

A. Many

B. Much

Select your answer:

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DEGREE COMPARISON Modals: Possibility, Necessity, Expectation Compound Nouns and Compound Adjectives Questions Past Perfect and Past Perfect Continuous Tense Vocab Checking Present Simple and Continuous Tense Definite and Indefinite Articles Simple Future - Will Adverbs & to be Mixed Tenses

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Grammar › View

Choose the sentence that correctly uses a gerund:

A. I enjoy to read.

B. I enjoy reading.

C. I enjoy reads.

D. I enjoy read

Vocabulary › View

What does “slumped” mean?

A. To keep in good condition

B. To sit or stand with the shoulders and head bent forward

C. The exchange of information through electronic devices

D. Communication between two or more people

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