下列行为是错误的()
A、在地下电缆保护区内堆放垃圾。
B、在海底电缆保护区内抛锚、拖锚。
c、在地下电缆保护区内兴建建筑物。
D、种植树木。
参考答案:A, B, C
It’s more than half a century _____ my grandfather joined the Party and became a servant to the people.
A.when
B.that
C.since
D.while