Precautions "make sure"

Before you remove the cover make sure the monitor is unplugged.

Read the sentences below and decide if they are correct or incorrect. Do they make sense?

Example:

"Before you compare prices you should buy a laptop." This sentence would be marked incorrect because it doesn't make sense. "You should compare prices before you buy a laptop."

a) Before you print a document, make sure there is paper in the printer.

b) Before you read the instructions make sure you try to fix the camera.

c) Before you save your document make sure you switch off the computer.

d) Before you compare prices make sure you buy a computer.

e) Before removing the USB flash drive, make sure you click “Eject this disk.”