800 câu trắc nghiệm Điền từ Tiếng Anh có đáp án - Phần 20

As a person has given up their cultural identity, they no longer can identify themselves with the things that were (4)______ the most important things in their lives.

28/34

As a person has given up their cultural identity, they no longer can identify themselves with the things that were (4)______ the most important things in their lives.

at once

once

one time

for once

Giải thích

B là đáp án đúng