3,7,16,30,( )。
A.49
B.70
C.54
D.50
参考答案:A
-----I’m afraid I can’t finish the novel you lent me this week.
----___________. [ ]
A. Please go ahead
B. That’s all right
C. Take your time
D. Not at all
如果某饭店当日某间客房未能出租,那么当日该客房的价值将()
A.暂时失去
B.以后补回
C.永远失去
D.其它时间获得补偿