Câu hỏi 25800 - Ngữ pháp tiếng Anh cơ bản - EN62
Fill in the blanks using the correct form of the verbs.
While climbing onto the mountain top, I ______ (encounter) a strange animal which I'd never seen before.
Fill in the blanks using the correct form of the verbs.
While climbing onto the mountain top, I ______ (encounter) a strange animal which I'd never seen before.