It`s crowded in that supermarket weekends because people enjoy shopping there.

问题描述:

It`s crowded in that supermarket weekends because people enjoy shopping there.
It`s crowded in that supermarket weekends because people enjoy shopping there.A.in;an amout of B.at ; the large number of C.on; a large number of D.in; a great deal of

the large number of 和 a large number of意思不一样
the large number of ...的很大数目
a large number of 很多
所以问题不在at weekends 和on weekends上