从农业人口情况来看，中国改革开放初期前后，与中国国情类似的国家还有（）。
A.哈萨克斯坦
B.波兰
C.瑞典
D.俄罗斯
参考答案：A
_______ bikes is exercise. [ ]
A. Ride
B. Rides
C. Rode
D. Riding
No one in the factory but the brothers _____ that our factory will be closed because of the financial
problem. [ ]
A. knows
B. know
C. have known
D. knew
