—I have to be off right now.—What a pity! Iyou could stay a little longer with us.A. think

问题补充：

—I have to be off right now.

—What a pity! Iyou could stay a little longer with us.

A. think B. am thinking C. thought

答案：

解析：本题下句的含义为我原以为你可能会和我们待更长一点儿的时间，表示之前的看法或想法，可用think的过去式thought，故本题选C。