Di Or Che Plus Infinitive

Question 1

He is sure he heard a noise

Answer 1

È sicura di aver sentito un rumore

Question 2

He decides to close his eyes and try to sleep

Answer 2

Di- for purpose of
Decide di chiudere gli occhi e provare a dormire

Question 3

He starts to close his eyes

Answer 3

iniziò a chiudere gli occhi

Question 4

there is something to do
(Da rules)

Answer 4

DA
a. movement from somewhere or towards a place; is there anything that needs to be done or worth doing
i. C’e qualcosa da fare;
ii. There is nothing that can be eaten (non c’e niente da mangiare)