When a person wants to operate the computer read instructions first.A. you will have toB

问题补充：

When a person wants to operate the computer, read instructions first.

A. you will have to

B. one must

C. they will have to

D. he has to

答案：

A. you will have to

B. one must

C. they will have to

(答案→)D. he has to

解析：可联系答.案.网客服索取。