----I wonder what makes you a successful manager.

----I ______ as a waiter for five years, which contributes a lot to my today’s work.

A. serve         B. have served

C. had served               D. served

—I wonder what makes you a successful manager.

—I ________ as a waiter for five years，which contributes a lot to my today’s work.

A．serve? B．have served

C．had served? D．served

短文改错（共10小题；每小题1分，满分10分）
Dear friends,
I’m awfully sorry to hear that a horrible but severe earthquake unexpected hit your hometown. Facing the rarely-seen disaster, we remain so calm and strong –willed that we are all moved to tear. A friend in need is a friend indeed. Think about your present situation, we can wait a minute to make every bit of effort to help you. I, as a chairman of the Students’ Union, on behalf of all my schoolmates, express our most sincerely pity and care for you. Besides, we have made donation of 120,000 yuan to you, expecting that it can help you go through the difficult. A better hometown can rebuilt. Remember we won’t be far away when you need any help.

短文改错（共10小题；每小题1分，满分10分）

Dear friends,

I’m awfully sorry to hear that a horrible but severe earthquake unexpected hit your hometown. Facing the rarely-seen disaster, we remain so calm and strong –willed that we are all moved to tear. A friend in need is a friend indeed. Think about your present situation, we can wait a minute to make every bit of effort to help you. I, as a chairman of the Students’ Union, on behalf of all my schoolmates, express our most sincerely pity and care for you. Besides, we have made donation of 120,000 yuan to you, expecting that it can help you go through the difficult. A better hometown can rebuilt. Remember we won’t be far away when you need any help.

 —I wonder what makes you a successful manager.

—I ________ as a waiter for five years，which contributes a lot to my today’s work.

A．serve                  B．have served        C．had served           D．served