— Is Jim coming by train?— I’m not sure. He drive his car.A. mustB. needC. mayD. will

问题补充：

— Is Jim coming by train?

— I’m not sure. He drive his car.

A. must

B. need

C. may

D. will

答案：

A. must

B. need

(答案→)C. may

D. will

解析：句意：吉姆是坐火车来的吗？我不确定。他可能会开车来。根据I’m not sure. 可知，此处表达的是猜测；故选C。