Having devoted his life to the realization of racial equality，former South African President Nelson Mandela＿＿＿on December S，2013．
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A
passed away
B
had passed away
C
has passed away
D
passes away
推荐题目
The old lady her husband for forty years.
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A
has married to
B
has got married to
C
has married
D
has been married to
The singer and dancer ________ come to the party tonight.
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A
is to
B
are to
C
are going to
D
was to
I had meant to meet you at the airport this morning, but I was too busy for I_______ a report.
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A
wrote
B
have written
C
was writing
D
had written
---Do you know when she _________?---Sorry, I don’t. But I’ll let you know when she _________.
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A
comes, comes
B
comes, will come
C
will come, will come
D
will come, comes
--- Why does the lake smell terrible?--- Because large quantities of water _________.
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A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted