问题补充:
There are lots of restaurants in our town. And most of are clean and cheap.
A. it
B. they
C. us
D. them
答案:
A. it
B. they
C. us
(答案→)D. them
解析:it it 是人称代词代替物,动物,门外的人,也可作形式主语和宾语等;they人称代词主格,他们; us人称代词宾格,我们;them人称代词宾格,他们.句意:在我们镇有许多饭店.他们大部分又干净又便宜.结合语境可知本句中代词指代的是前文提到的restaurants,故用复数形式,作介词宾语用宾格,故选D.