The last time they traveled with each other was two years ago.

39/40

They didn't travel with each other for two years.

They traveled with each other for two years.

They haven't traveled with each other for two years.

They haven't traveled with each other since two years.

Giải thích

Đáp án đúng: C

"The last time ... was two years ago" = haven't + V3 + for two years. D sai vì "since two years".

Dịch nghĩa: Họ đã không đi du lịch cùng nhau suốt hai năm.