单项选择题
A.easy B.probable C.available D.liable
Most people who travel in the course of their work are ...
单项选择题Most people who travel in the course of their work are given travelling（）
A.income B.allowances C.pay D.wages
The suspect's fingerprints on the gun were the main（）ag...
单项选择题The suspect's fingerprints on the gun were the main（）against him.
A.crime B.information C.conviction D.evidence
Humidity (湿度) is so intense in some parts of the tropic...
单项选择题Humidity (湿度) is so intense in some parts of the tropics that Europeans find they are unable to（）it.
A.maintain B.persist C.endure D.sustain
