When Henry arrived home after a hard day at work, his wife was slept .

A．his wife was sleeping

B．his wife slept

C．his wife has slept

D．his wife has been sleeping

人在感冒时，呼吸不畅的原因是　　 [ ]

A．鼻腔粘膜分泌粘液过多，堵塞了鼻腔　　

B．鼻腔粘膜充血肿胀，堵塞了鼻腔　　

C．气管分泌的痰过多堵塞了呼吸道 　　

D．声带发炎肿胀，气体不能通畅流动