[ Perfect Tenses ]
In which tense do we use the auxiliary verb had plus the past participle form of the verb to express the earlier of two past actions?
A. Present perfect tense
B. Past perfect tense
C. Simple past tense
D. Future perfect tense

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Unreal Conditionals › ViewThey might not have made it ____________________________.
A. if it hadn’t been for luck.
B. if it hasn’t been for luck.
C. if it might not have been for luck.
D. if it would not be luck.
Grammar › View
Why is your hair wet? It _______________ for hours and I didn’t have any umbrella!
A. have raining
B. has rained
C. has been raining
D. has being rained