一辆汽车在平直路面上以10m/s的速度运动，某时刻刹车时的加速度为2m/s２，则在刹车后10s，汽车的位移是( )
Ａ．100m B．0 C．25m D．50m
May I take your order，sir？（ ）
A．Chicken with vegetables and two bowls of rices．
B．Chicken with vegetables and two bowls of rice．
C．Chickens with vegetable and two bowl of rice．
The young man from European country has stayed in the room for hour．（ ）
A．a； anB．an； aC．an； an
Who won the first prize in English speech contest？
The prize went to the girl _____ speech was the most natural and fluent．（ ）
A．thatB．whoC．whoseD．不填
The light in his office is still on．I wonder _______．
Maybe at midnight again．（ ）
A．if will he stop working
B．if he will stop working
C．when will he stop working
D．when he will stop working
I'm very nervous the night before the big exam．
______．I'm sure you can make it．（ ）
A．Take it easyB．Take your time
C．Go aheadD．Enjoy yourself