We should wait for the traffic lights _______ before we ...

[ Grammar ]

We should wait for the traffic lights _______ before we cross the street.

A. turn green

B. to turn green

C. turn yellow

D. to turn yellow

Select your answer:

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Definite Articles Grammar - must & have to Intermediate Grammar Conjunctions and Commas Present Simple: affirmative, negative, interrogative Grammar and Vocabularies Adverbs by Type Nouns & Pronouns Superlative Adjectives

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