Which of the followings is NOT badly affected by contaminated groundwater?
C
Cái gì không bị ảnh hưởng xấu bởi nước ngầm bị ô nhiễm?
A. con người B. cây cối C. hòn đá D. động vật
=> đáp án C
Which of the followings is NOT an evidence of monitoring studying?
It can be a very (30) __________ surprise if you expect to shake hands and get a kiss or a hug instead.
According to the passage, what can be learnt about passive students?
Which of the followings is the flow of water from the ground to the surface?