[ Tenses ]
As soon as I —- to my secretary, I realized that I —- the situation.
A. had spoken / have misunderstood
B. spoke / had misunderstood
C. have spoken / misunderstood
D. were speaking / would misunderstood
E. spoke / have misunderstood

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Vocabulary › ViewEnriched uranium is a key _____ of a nuclear weapon.
A. discuss
B. counter-argument
C. characteristics
D. component
Sentence Structure and Verb Tenses › View
Select the sentence with an adjective modifying a noun:
A. She quickly finished her homework.
B. The tall building was impressive.
C. He ran fast.
D. They spoke loudly.