He said he was very sorry because it was _______ his power to make the final decision. _______, I had to turn to others for help.
A：beyond; In that case
B：beyond; In no case
C：over; In any case
D：over; In his case
___________，你尽可流动明眸，欣赏白云蓝天，飞流急湍；_________，你尽可闭目凝神，倾听莺歌燕舞，春水潺潺；________，你尽可翕动鼻翼，呼吸牡丹的浓香，黄菊的清爽；__________，你尽可品评自娱，把玩深尝。
①文学是一座姹紫嫣红的百花园； ②文学是一杯回味无穷的香茗；
③文学是一幅意境高远的中国画； ④文学是一首清脆圆润的古曲。
At school, we are taught _______ knowledge _____how to behave well.
看情景·谈感受情景一：放学路上，甲和乙同学互相打闹，甲同学不小心撞倒了路人，该同学不仅不道歉而且还骂路人，该同学的行为遭到了同学们的唾弃。情景二：某校组织参加一个大型图片展，同学丙手机响了，该同学不顾会场秩序，大声接电话，其他同学纷纷对他的行为表示不满。
常见的易挥发的物质有 ____
