A. evidence
Đáp án C
gives examples of how it is used: đưa ra những ví dụ về cách dùng của từ đó
The sulfurous smoke from factories and power stations mixes with rain clouds and gets blown by the wind and then falls as acid rain (5) _____ destroys lakes and forests.
On this occasion, 47 people were killed, even though, (35)______ in 1987, the weather forecasters issued accurate warnings.
This means that your success as an employee will depend on your ability to communicate, with people and to (32) _____ your own thoughts and ideas to them so they will both understand what you are driving at and be persuaded.