epochal challenge ______
举一反三
- John decided to face up to the ____ task as he is a person who likes _____ himself. A: challenging, challenge B: challenging, challenging C: challenge, challenging D: challenge, challenge
- challenge
- Heisanambitiousyoungmanandlikestotakea(challenge)____job. A: challenging B: challenged C: challenge D: challenger
- 挑战性(Challenge)
- The main challenge of learning