Air pollution, together with littering, has _____ many problems in ...

[ Grammar ]

Air pollution, together with littering, has _____ many problems in our large cities today.

A. caused

B. made

C. affected

D. brought

Select your answer:

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Simple Past Future Tense Start vs. Begin Past Perfect Continuous Tense Infinitives or Gerunds Adjectives and Prepositions Grammar - TOEIC Grammar - Wh Questions take, make, do Gerund & Participle

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Would you like … wine with your dinner?

a. some

b. any

Grammar › View

____ that you were coming, I wouldn’t have gone out.

A. Had I known

B. I had known

C. If I knew

D. I should know

How to use : Read the question carefully, then select one of the answers button.