（2018•北京）In any unsafe situation, simply _________ the button and a highly-trained agent will get you the help you need.

题型：单选题题类：真题难易度：普通

2018年高考英语真题试卷（北京卷）

In any unsafe situation, simply _________ the button and a highly-trained agent will get you the help you need.

A、press B、to press C、pressing D、pressed

举一反三

—_________.

The weather was awful, which {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} for us to finish the task on time.

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