问题
选择题
As the years passed, many occasions—birthdays, awards, graduations — __________ with Dad’s flowers.
A．are marked
B．were marked
C．have marked
D．had marked
答案
.B。
由于句中增加了插入成分birthdays, awards, graduations，使得句子的主语与谓语were marked分离，从而增加了考生对句子理解的难度。根据句意，空格处应填被动语态; 再根据句中的passed的时态特点可知，空格处也应用一般过去时，故选B。