Fill in the Blanks Prepare 3 Unit 7Online version WBex2 by Анна Крылова 1 bookcase lights heating fridge conditioning stairs machine roof 1 . When you need some clean clothes , use a washing 2 When you need to make your house warmer , turn on your . 3 When your classroom is too hot , turn on the air . 4 When you need to go to the first floor from the ground floor , walk up the . 5 When your bedroom ? s too dark , switch on the . 6 When you want a cold drink , get one from the . 7When you want something to read , go and choose something from the . 8 If rain comes into your house , perhaps there ? s a problem with the .