20 complete each pair of sentences with the same word. 1 a my teacher is going to me how to solve the problem. b it's a great ! you should go and see it! 2 a you should left here, not right! b it's my to cook dinner tonight. 3 a i’m going on a business to prague next week. b oh no, you've cut your knee! did you and fall when you were running? 4 a some infections are easy to with the right kind of medicine. b i took him to a nice restaurant as a for his birthday. 5 a what's on your ? you look worried about something. b it's not a problem if you can't finish all your work today. i don't