It's nine.的问句是什么?A.What are seven and two?B.What's your phone number?C.What'syour ID number?D.What's seven and two?呃,弄不准到底是What is还是What are了 = =

It's nine.的问句是什么?A.What are seven and two?B.What's your phone number?C.What'syour ID number?D.What's seven and two?呃,弄不准到底是What is还是What are了 = =
It's nine.的问句是什么?
A.What are seven and two?B.What's your phone number?
C.What'syour ID number?D.What's seven and two?
呃,弄不准到底是What is还是What are了 = =

It's nine.的问句是什么?A.What are seven and two?B.What's your phone number?C.What'syour ID number?D.What's seven and two?呃,弄不准到底是What is还是What are了 = =
D.What's seven and two?
7加2等于=9
算数一般都用单数谓语动词
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答案选d
算数一般都用单数谓语动词

选D，这些算术类的都是用单数谓语动词的，

选A 7+2=9