Just use this room for the time being, and we'll offer you a larger one ________ it becomes available.[ ]

A. as soon as  

B. unless

C. as far as  

D. until

急性喉炎多由哪些病毒引起（）

A.流感病毒

B.呼吸道合胞病毒

C.腺病毒

D.副流感病毒

E.冠状病毒