Mary tiptoed over and took the clock away because she hated to hear it（） when she was trying to go to sleep.
C
「句意」玛丽蹑手蹑脚走过来把钟拿走了，因为她讨厌在自己想睡觉的时候听它滴哒地响。
「难点」sound意为“作声，发声，响”;ring意为“鸣，发出清脆响亮的声音“;tick意为“发出滴哒声”;hum意为“发连续低沉的声音(如蜜蜂、马达的嗡嗡声)”。
Josephwasverylucky____withhislife;healmostdidnotgetoutoftheroom.
The country’s chief exports are coal, cars and cotton goods, cars _____ the most important of these.
Thesmallmountainvillagewas（）bythesnowformorethanonemonth.