Jawaban:

activity 1

1. something which you think and eventually manifest (synonyms: plan, scheme)
2. an event where people compete against each other often times to win a prize or an award (synonyms: competition, tournament)
3. set one's eyes on someone or something (synonyms: gaze, view, watch)
4. help someone else (synonyms: help, aid)
5. take part in (synonyms: participate, get involved (in))
6. do a joint work on whichever activity (synonyms: cooperate, team up)
7. of incredible amount (synonyms: massive, huge)
8. the reason why something is done (synonyms: motive, reason)
9. talked by a lot of people (synonyms: famous, celebrated)
10. retain something (synonyms: carry, retain)

activity 2

1. I would like to hear your idea
2. I'm going to participate in the drawing contest
3. he's going to look at your phone
4. they would like to assist you in your campaign
5. I'm going to join the invading army
6. she would like to collaborate with you on a track
7. my boss would like to listen to the story of this terrific battle you were a part of
8. I would like to have a purpose in life
9. I'm going to be a renowned singer
10. I'm going to keep the change

Penjelasan:

gw ga tau meaningnya b. Indo atau b. Inggris

1. ide
2. kontes
3. lihat
4. bantu
5. ikut
6. kolaborasi
7. megah/wow
8. tujuan
9. terkenal
10. menjaga