It is the best pet I_____A ever haveB ever hadC hadD to have
问题描述：
It is the best pet I_____
A ever have
B ever had
C had
D to have
答
A 吧。。。
如果是 It was the best pet, 就填 B 或是 I have ever had 了。。。
答
c
had本身就表示是过去时了
答
B