单项选择题
A.acceptable B.available C.advisable D.applicable
When you go to the doctor he asks you to describe your（...
单项选择题When you go to the doctor he asks you to describe your（）so that he can make a diagnosis (诊断).
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
