The brightest and most conscientious students are not encouraged to develop to their full (23)_____.
Đáp án C
A. kế hoạch
B. danh tiếng
C. tiềm năng
D. thành tích
According to the passage, which of the followings supports healthy ecosystems?
It works like a greenhouse, that’s why we call (25) _________the Green House effect.
Which of the followings is the flow of water from the ground to the surface?
When (27)_______ visual signals are not possible, more formal signals may be needed.
Which of the following is NOT mentioned in paragraph 3 about earthquakes?