单项选择题
A.does stand；a 8-storeyed
B.do stand；a 8-story
C.stands；an 8-storey
D.stand；an 8-storied
单项选择题 The number of deaths from heart disease will be reduced greatly if people（）to eat more fruit and vegetables.
单项选择题 The first use of atomic weapons was in 1945，and their power（）increased enormously ever since.
单项选择题 Children under 12 years of age in that country（）be under adult supervision when in a public library.