ENGLISH: Find the preposition in the sentence


14. We stayed quiet and behaved during the class sessions.
A. stayed
B. quiet
C. behaved
D. During

15. Lilith left the house an hour ago.
A. house
B. the
C. ago
D. left

16. The teacher waits until the students finish their activity.
A. until
C. finish
D. activity
B. waits

17. Many animals have become extinct since the world experienced global warming.
A. have
B. since
C. extinct
D. experienced

18. The prince found the princess crying by the river.
A. found
B. by
C. river
D. crying​