------------------- new workes ____________ become members of the factory since last month

题目

------------------- new workes ____________ become members of the factory since last month
A.The number of ; has
B.A number of ; have

答案

B the number of 指.的数量
a number of 指 很多的.并且是可数名词
复数用have 单数用has
所以 选B