문제 1선택형다음 문장을 수동태로 바꾸세요: 'He writes a letter.'A letter is written by him.A letter was written by him.A letter has written by him.A letter will be written by him.
문제 2선택형다음 중 현재완료 시제를 사용한 문장은 무엇인가요?She has lived here for ten years.She lives here for ten years.She is living here for ten years.She lived here for ten years.
문제 4선택형다음 문장을 현재완료 시제로 바꾸세요: 'They finish their homework.'They have finished their homework.They is finishing their homework.They finished their homework.They has finished their homework.