问题

tens of yearsago, most zoos in such a way—animals in one areaand birds in another.

A:wereorganized
B:hadorganized
C:willorganize
D:havebeen organized

正确答案是：

同类题型

下列各句中，没有语病的一句是（）

The cost of living in Chengdu is among the lowest inChina, ________ the quality of life is probably one of the highest.

We had worked only one hour it began to rain so heavily that we had to put up our tent[ ]

Wow! Your hairstyle looks so fashionable!—_______.It’s my mother’s design!

It’s said the result we are interested in as soon as possible.