—I have trouble learning math this term. —You should pay more to your teacher’s advice. A. money B. attention C. time
--- More than 1.3 billion people live in China now. --- Wow, That’s almost ________ of the world ‘s population. A. one fifths B. half of C. one fifth
There are many birds ________ among the trees. A. flying B. fly C. to fly
__________ of the students likes reading. They both like playing sports. A. None B. Neither C. All
--- The population of China is really large! --- __________ We should take measures to control it. A. So it is. B. So he is C. So is it..
--- Why should we plant more trees to protect the environment? --- Because trees can stop the wind from ________ the earth _________. A. washing ;away B. blowing; away C. changing ;into