How close parents are to their children ________ a strong influence on the character of the children.A) haveB) hasC) havingD) to have
问题描述：
How close parents are to their children ________ a strong influence on the character of the children.
A) have
B) has
C) having
D) to have
答
B
空格前的内容是主语从句,视为单数,has是动词