[ Grammar ]
Christopher Columbus was the sailor ______ discovered America.
A. which
B. that
C. –
D. whose
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Grammar › ViewEven a suspicion of wrongdoing can ….. a politician’s reputation.
A. stain
B. impair
C. tarnish
D. sumdge
Tenses › View
Which of the following sentences correctly uses the present perfect tense?
A. I have seen that movie last week.
B. He has saw the doctor yesterday.
C. She has finished her homework.
D. They have went to the park.