A、 He wants to find out their professor's phone number.
B、 He wants to help the woman with her math homework.
C、 He wants to seek help in doing his math homework.
D、 He wants to know what the math assignment is.

【正确答案】 C

【答案解析】解析：在双方互相问候之后，男士马上提到他做数学作业时遇到了问题，言下之意就是，想向女士求助，故C为正确答案。

A、 Tonight
B、 In two hours.
C、 Tomorrow.
D、 In a few minutes.

【正确答案】 C

【答案解析】解析：对话中，女士提到数学作业明天就要交了(theassignment's due tomorrow)，其中的due指“到期，到预定的时间”，故C为正确答案。

A、 He didn't expect the assignment to be so hard.
B、 He has already consulted his professor.
C、 He and the woman often work together.
D、 He is generally a good student.

【正确答案】 A

【答案解析】解析：对话中，男士提到，他原先以为数学作业不难，可以两小时内做完，但现在看来，他甚至不知道应如何着手，故数学作业比他想象中要难得多，A为正确答案。

A、 She thinks it's too late to help him.
B、 She agrees to work with him.
C、 She offers to do the assignment for him.
D、 She will ask help from their professor.

【正确答案】 B

【答案解析】解析：在对话的最后几句，女士邀请男士到她那一起讨论数学作业，并愿意告诉男士她所想到的，故可推知女士愿意向男士提供帮助，故B为正确答案。