单项选择题
A.indications B.signs C.symbols D.symptoms
He ran so fast that he was out of（）A.airB.oxygenC.breat...
单项选择题He ran so fast that he was out of（）
A.air B.oxygen C.breath D.wind
Be careful with those fireworks; they are（）to go off un...
单项选择题Be careful with those fireworks; they are（）to go off unexpectedly.
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
