the buildings were knocked down in the earthquake in the city of Tangshan..A. A great deal

问题补充：

the buildings were knocked down in the earthquake in the city of Tangshan..

A. A great deal of

B. A great many

C. The number of

D. A great many of

答案：

A. A great deal of

B. A great many

C. The number of

(答案→)D. A great many of

解析：D解析：a great/good many=a great/good/large number of+n.(pl.)；a great deal of修饰不可数名词，故可排除； The number of……的数量，作主语时，谓语动词用单数。此题中因名词buildings前有the，所以选D项。