----I ve got to go now ----Must you?I----you could stay for dinner with us.A.think B.thought C.have thought D.am thinking我认为B、C都对,但答案是B,为什么呢?

----I ve got to go now ----Must you?I----you could stay for dinner with us.A.think B.thought C.have thought D.am thinking我认为B、C都对,但答案是B,为什么呢?
----I ve got to go now ----Must you?I----you could stay for dinner with us.
A.think B.thought C.have thought D.am thinking
我认为B、C都对,但答案是B,为什么呢?

----I ve got to go now ----Must you?I----you could stay for dinner with us.A.think B.thought C.have thought D.am thinking我认为B、C都对,但答案是B,为什么呢?
B
应该是B,过去时表示刚才之前认为的事情,而现在变了,因为那个人现在就要走.而现在完成时表示的是过去到现在为止都是这么认为的.