当前位置:在线题库搜索>[单选题]When a person wants to operate this computer, ( ) the instructions first.的答案是什么?

问题:

[单选题]When a person wants to operate this computer, ( ) the instructions first.

A、you will have to read
B、you must read
C、you have to read
D、he has to read

参考答案: D

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