By the 1920s, Howard Carter ____ an explorer.
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A
has become
B
had become
C
became
D
would become
推荐题目
We don’t live here;we_____.
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A
just visit
B
are just visiting
C
just visited
D
have just visited
In the meeting, the professor expressed his thanks for the aid he _________ from his students.
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A
received
B
was received
C
have received
D
had received
By the time he arrived in Beijing, we _______ there for two days.
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A
will have stayed
B
stay
C
have been staying
D
had stayed
The computer looks old, but it _________ just half a year ago.
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A
has been bought
B
was bought
C
is bought
D
will be bought
She is too slow .She _______pass the test ,but she ______too little .
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A
would ;knew
B
will ;knows
C
would ;knows
D
will ;knew