单项选择题

（）man can now create radioactive elements, there is nothing he can do to reduce their radioactivity.

A. As
B. Whether
C. While
D. Now that

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单项选择题

Which statement is true of the description of the capture operation（）

A. Four people and Major Reinado himself were killed.
B. Four people were killed, but Major Reinado escaped.
C. Four people including Major Reinado were killed.
D. Four people escaped, but Major Reinado was killed.

单项选择题

Cohn married my sister and I married his brother,（）makes Cohn and me double in-laws.

A. what
B. which
C. that
D. it