Choose the correct item 1) my brother was late in/for/at 2) we couldn't do the exercise. it was very different/favourite/difficult 3) they will have to miss lessons tomorrow, won't they/have they/will they? 4) i go to chess club once in a/once a/once at week 5) my mum is waiting -/to/for the doctor now 6) you mustn't/must/can gomthere. it's too late. 7) she has to stay with her sister, hasn't she/doesn't she/ does she? 8) kate, you have a running nose. you can/mustn't/should go to the doctor. 9) nick has a headache/toothache/cold. he has a temperature andna sore throat. 10) kate is a good girl. she's friendly and polite/strong/tall. 11) our classroom is comfortable/the most comfortable/more comfortable than your room. 12) my brother can help me to do/make/have the sum. !