circle the correct alternatives.
14. i am afraid of going to the kitchen/ i saw some/ any cockroaches there at night.
15. can you help me? i try to find / finding my key.
16. my brother go /goes to england on a school trip.
17. i am not going/ am going not to go to school tomorrow.
18. you must /mustn't buy a ticket. you need one to get into the stadium.
19. they are going/they are go to arrive in an hour.
20. he is going to phone/to phoning.