They were all afraid of the air attacks from the enemy, just lying in the bed ________.
A.sleeping
B.waking
C.half asleep
D.waiting
网友回答
C解析这里考查了形容词短语用作状语，对某种状态加以描述。这里所表达的意思是“他们害怕敌人的空袭，只是躺在床上半睡半醒”。还有许多类似的词，如：half dead, half awake, fast asleep, alive, short, alone, high, deep等及其短语形式都可在句中充当状语。