问题
选择题
Large quantities of time ______ for practising guided writings.
A．was needed
B．are needed
C．needs
D．is needed
答案
答案：B
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。