My MP4 player isn’t in my bag. Where        I have put it?

A．can

B．must

C．should

D．would

Day by day the sea is eating the land—the dam has stopped the sediment of the Nile from replenishing the shoreline.( )

A．海水一天天吞噬陆地——水坝已经使得尼罗河的泥沙沉积下来，从而加固海岸。
B．海水一天天冲刷陆地——水坝已经停下来了，尼罗河的泥沙沉积下来加固了海岸。
C．海水一天天冲刷陆地——水坝已经使得尼罗河的泥沙无法沉积下来加固海岸了。
D．海水一天天吞噬陆地——水坝已经阻止尼罗河泥沙的沉积，海岸因此而加固了。