199.Once everyone is ____ his life, he will instinctively(本能)find every possible way ______.
A.in danger of;out of danger
B.in the danger of;out of danger
C.in danger of;out of danger
D.in the danger of;out of the danger
200.Let's put our heads together and decide ____ a plan of action.
A.on
B.about
C.for
D.at