— Don't worry. I think as soon as he _______, he will give you a call.
A:will come; will come
B:will come; comes
C:comes; will come
D:comes; comes
甲、乙两人投掷两个普通的正方体骰子,规定掷出“和为7”算甲赢,掷出“和为8”算乙赢,这个游戏是否公平?( )
I ________ like my uniform. It's not nice.()
一个盒子有1个红球,1个白球,这两个球除颜色外其余都相同,从中随机摸出一个球,记下颜色后放回,再从中随机摸出一个球,则两次都摸出红球的概率为( )
地球上最大的生态系统是海洋生态系统。