We all believe that a happy marriage should be _______ mutual love.

We all believe that a happy marriage should be _______ mutual love.
A. based on
b. concerned with
c. confided in
D. obliged to
 

Khoa Lê

New member
Đáp án: A
Giải thích: Be based on + N = dựa vào cái gì
To be concerned with: quan tâm tới
To be obliged to: có nghĩa vụ