James Cook ______.
A. was a commander of voyages for discovery Tahiti
B. used to joined the US Navy
C. was a sailor around the world three times
D. used to be an apprentice to a shipping company when he was young
【B9】
A. careful
B. sure
C. certain
D. thinkful
【B3】
A. know
B. remember
C. study
D. keep
【B10】
A. than
B. of
C. in
D. for
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