听下面一段较长对话,回答以下小题。
14. What is the main purpose of the man’s visit?
A.To have further study. | B.To attend a conference. | C.To buy new products. |
15. When will the man leave the U. S.?
A.On April 19th. | B.On April 21st. | C.On April 27th. |
16. Where did the man finish his college?
A.In Chicago. | B.In Beijing. | C.In Pennsylvania. |
17. What is probably the man?
A.A financial manager. | B.A customs officer. | C.A computer engineer. |