[ Grammar ]
You ….. wash glass bottles before you recycle them. They do that at the recycling plant.
A. needn’t
B. mustn’t
C. shouldn’t

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Prepositions › View Marilyn strolls ____ the doorway.
A. across
B. along
C. through
Perfect Verb Tenses › View
Last week, Zoe had finished her homework before she went to the park. What does the past perfect tense show in this context?
A. An action that began and ended in the past
B. An action that is happening now
C. An action that will start and end in the future
D. An action that is continuous