1. B. Present tense - ‘forgets’ is indicating a current action. Past tense would be forgot.
2. A. Past tense - ‘walked’ means she already made it home. It is a past action now.
3. D. Future tense - ‘will see’ they have not seen the devil yet. It takes place in the future.
4. A. Past tense - ‘fell’ indicates the action already happened.
5. B. Present tense - ‘is’ means current, ‘was’ would be past.
6. _exploded_. - Past perfect; her tire exploding is what caused the accident. Both actions take place in the past. ‘Was riding’ helps indicate this.
7. _left_. - Past tense; he already made it to school after he charged his phone. It happened in the past. It is not ‘will leave’ because the sentence does not say ‘is charging.’
8. _eats_. - It is present tense. He ‘trains’ and (eats) to ‘become’ stronger. He is currently working to get strong.
9. _will go_. - It is future tense; she has not gone to the store yet, but plans to. ‘Went’ would be past and ‘is going’ would be the present.
10. _finished_. - Past perfect; she did the project BEFORE the deadline. The action was completed before another in the past.
11. _studied_. - Past action; he got his score back, so he already took the test.
12. _happened_. - Past tense; ‘Was just adjourned when…’ indicates that both of these actions (meeting adjourned and earthquake) have taken place already.
13. _went_. - Past tense; she already ‘danced’ with her friends. It takes place in the past.
14. _called_. - Past perfect. ‘Her mom call her’ is grammatically incorrect, too.
15. _killed_. - It is the past tense of kill; she already threw the insect outside. It is not present tense; for it to be ‘kills’, caught would need to be ‘catches’ and threw would need to be ‘throws’. Killed agrees with the other verbs.
16. _will go_. - Future tense; the speaker has not yet graduated or gone to college.
17. _are_. - Present tense. ‘You is’, ‘you am’ are grammatically incorrect. They would have to be he/she/it IS, i AM. In this case ‘are’ works for ‘you ARE’ or ‘they are’.
18. _obeys_. - Present tense with the plural form (the s on the end of ‘obeys’) because ‘the class’ is a collective group.
19. _brought_. - Past tense; Her packed lunch is with her today.
20. _will be_. - Future tense; the school year is not over, and hopes are generally expressed in/with future tense.
Hope this helps!