搜尋自 英語 {1} 教師……
Muriel G. TEFL IELTS
專業教師
Past Perfect Continuous (Past Perfect Progressive)
6) He had been failing the class until we __________ a tutor.
a. hired
b. hire
c. hiring
3 人已做了小測驗
2026年4月1日 04:54

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