单项选择题

______ of 70 years old, he decided to sail single-handed across the Pacific Ocean.

A．On the verge
B．At the risk
C．In the course
D．For the sake
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单项选择题
All that afternoon my father was in ______ as he had his wallet stolen on the bus.
A．great anxiety
B．sad illusion
C．ill humor
D．deep hatred
单项选择题
He admitted that he had ______ killed his wife, but denied that he had murdered her in cold blood.
A．accidentally
B．deliberately
C．mercilessly
D．occasionally
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