Large quantities of time for practising guided writings.
A. was needed
B. are needed
C. needs
D. is needed
网友回答
A. was needed
(答案→)B. are needed
C. needs
D. is needed
解析：
这题考查主谓一致的用法： a large quantity of/Large quantities of修饰可数不可数名词都可以，谓语的单复数取决于quantity的单复数，这句话的主语是：Large quantities of所以选B。