Помогите пожалуйста с английским2. Choose only IRREGULAR verbs. Choose help know

Помогите пожалуйста с английским
2. Choose only IRREGULAR verbs.
Choose help know realize study sleep.
A) choose, know, study
B) help, realize, sleep
C) choose, know, sleep
D) help, realize, study

5. Fill in the gap.
It was such a cozy place l always felt at ______ when l visited it.
A) house
B) home
C) flat
D) family

6. Choose the correct modal verb.
When we studied at school we ______ wear uniform though we didn t like it.
A) must
B) had to
C) could
D) might

14. What holiday is celebrated on the 31 of October ?
A) Christmas
B) Thanksgiving day
C) Halloween
D) New Year