When caught ______, he begged for my pardon and tried ______ punishment.

A．stealing; escaping

B．stealing; to escape

C．to be cheating; escaping

D．to be cheating; to escape

坦桑尼亚产一种著名的优质的（）。

A.黝帘石

B.橄榄石

C.水晶

D.锆石