Bộ 20 đề ôn thi Chuyên Anh năm 2023 (Đề 68)

About $700 will buy a student ticket (9) ___ for six months that will take you from London to Calcutta, Singapore, Bangkok, Perth, Sydney, Auckland, Fiji, Tahiti, Los Angeles and (10) ___ aga

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About $700 will buy a student ticket (9) ___ for six months that will take you from London to Calcutta, Singapore, Bangkok, Perth, Sydney, Auckland, Fiji, Tahiti, Los Angeles and (10) ___ again.

genuine

valid

effective

legal

Giải thích

Chọn B