单选题 On (each) side of the highway (was) hundreds of billboards (advertising) everything from modern motels to roadside stands that sell (fresh fruit) and bedspreads.

A、 each
B、 was
C、 advertising
D、 fresh fruit

【正确答案】 B

【答案解析】应为were。因为billboards是复数名词。再如，In the room are a lot of people(因为 people是复数，所以要用系动词的复数形式)。