r. 4 Complete the sentences with modifiers. 1 This solar heater turns itself on and off automatically - it's quite unusual 2 This mouse costs €200 - that's y expensive 3 My mum has a new travel DVD player for the car - useful. 4 That fan doesn't work very well - it's k ____ old-fashioned 5 The heater isn't working - the classroom is m 1__ cold 6 I can't do this exercise - it's t impossible it's e​