[ Past Tenses ]
Which tense shows an action that was happening before another past action?
A. Past simple
B. Past perfect
C. Past perfect continuous
D. Present perfect

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Modals - should › ViewYou _ cross the street at red traffic lights.
A. should
B. shouldn’t
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It is ____________ that Harold is in a good mood now because he has a big smile on his face.
A. proper
B. plastic
C. obvious
D. eager
