Elementary Grammar Test 62

Test # 62

I'm terribly sorry but I ________ what you said just now and I wonder if you could repeat it.

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Precautions while using Power Supply

Ac power supply

Use the following procedures for installing AC power supplies in the ServerIron device. To install an AC power supply, do the following
1. If necessary, remove the power supply locking screw located in the center rear of the device illustrated below .
2. If the empty power supply bay has a cover plate, press inward on the two latches near the left and right edges of the cover plate to unlock the plate illustrated below , then remove the plate. Remove the new power supply from its packaging.
3. With one hand, hold the bar on the front panel of the power supply. With the other hand, support the underside of the power supply, and insert the power supply into the empty power supply slot. Press until the supply is completely in the slot, so that the connectors on the back of the supply fully engage with the pins on the power backplane.
4. Press the two latches near the edges of the supply outward to lock the supply in place.
5. Replace the power supply locking screw.
6. Install the power cord.

Sleep and wake are verbs (although we usually use "wake up" for when you stop sleeping, and "go to sleep" for the moment when you begin sleeping):
  • My kids go to sleep at 10 PM.
  • I slept during the 6-hour flight.
  • I wake up at 7 AM and I have to be at work by 8.
  • Yesterday I woke up late because my alarm didn't go off.

    You can also use wake up for the action of making someone else stop sleeping:
  • Don't talk so loudly! You'll wake up the baby!
  • Your sister is taking a short nap. Can you wake her up in about 20 minutes? Awake and asleep are adjectives. Use them with the verb to be:
  • He's awake. = He isn't sleeping.
  • He's asleep. = He is sleeping.

    It's common to use the expressions stay awake / stay up (to continue awake) and fall asleep (to begin sleeping):
  • On New Year's Eve, my children stay awake until midnight.
  • I always fall asleep in history class - it's so boring!

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