问题

The population of Africa is ________ so rapidly as to cause concern of the whole world. [ ]
A: expanding
B: circulating
C: exporting
D: spreading
B: circulating
C: exporting
D: spreading
正确答案是:
同类题型
What were you doing at nine o’clock yesterday evening—I homework at home.
How are you going to the Summer Palace— We’re going there bike.
Where do you ____________—Jiangmen.
Her efforts resulted________her success while her brother’s failure resulted________his laziness[ ]
failed over and over again in my life, but I stick to my goal. And that’s I succeed.