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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Last summer, I _______ (travel/travels/traveled/traveling) to Europe.

A. travel

B. travels

C. traveled

D. traveling

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Does ___ ___ math for the test?

A. she, study

B. she, studied

C. he, studied

D. he, studied

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