Elementary Grammar Test 174

Test # 174


1.
A man had two dogs: a hound ________ to help him with his sports and another to guard the house.

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Precautions while using Refrigerators

Do not splash water

Do not splash water on the refrigerator, as it would cause an electric current leakage or malfunction of some electrical components. Bear this in mind when cleaning areas around your fridge. Compressor and Peltier refrigerators are powered by electricity. Absorption units can be designed to get power from any heat source. A noticeable difference between the two types is the absence of refrigerant with Peltier coolers (these use a different method of cooling). But Peltier coolers use more electricity because they are thermodynamically inefficient.

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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