爆炸发生时，要保持（）
A、背向爆炸方向趴下
B、站立姿势
C、躲在高处
D、闭紧嘴唇
参考答案：A
At first he hated the new job but decided to give himself a few months to see ___ it got any better.
A．when
B．how
C．why
D．if
A．锻炼身体 B．游泳 C．买东西
