二、阅读理解：阅读下面的对话，选择合适的内容将对话补充完整。

Why Should You Adjust Your Hard Hat So It Fits Properly
Two colleagues are heading for a construction site.
Robert: Let’s go to the worksite and see the progress.

Ben: OK, you must remember to wear a hard hat.

Robert: 1

Ben: Of course. Hard hats are important for protecting your head in open environments.

Robert: Is my hat on properly

Ben: 2 First of all, adjust the suspensions.

Robert: I want the hat to fit comfortably so it doesn’t fall off, but I don’t want to make it so tight that it causes discomfort. What should I do

Ben: You can adjust the chinstraps properly to fit around your chin.

Robert: I see. Do you have any more information about safety

Ben: 3 because after years of wear and tear, the entire suspension system may need replacing.

Robert: 4

Ben: And do not stuff the gaps of a hard hat or make changes to the hat’s suspension harness. Otherwise, its effectiveness will be impacted.

Robert: 5 Now I know how important a hard hat is in the high-hazard construction industry!__2__(完形填空)
. You need to check the suspensions regularly,
. Let me check.
. That’s really worth noting.
. Can a hard hat save my life
. Thank you for your detailed introduction.