问题

The doctors in Beijing did all they______ to save Shao Zhanwei, mayor of Hangzhou, but he still died of heart attack at the age of 58.
A:would
B:could
C:must
D:might;
B:could
C:must
D:might;
正确答案是:
同类题型
Who’s the little baby in the photo, Susan— It’s me. This photo tenyears ago.
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