问题补充：
flights had to be put off because of the hurricane all those days .
A. A great many of
B. A great number of
C. A great deal of
D. The great number of
答案：
A. A great many of
(答案→)B. A great number of
C. A great deal of
D. The great number of
解析：这题考查词组辨析A. A great many of多了of，B. A great number of修饰可数名词复数，表示：许多， C. A great deal of修饰不可数名词，表示：许多，D. The great number of修饰可数名词复数，意思是：…的数量，句意是：这些天因为台风大量的航班被推迟。选B。
