Studies show that young people with higher-than-average blood pressure and their families have a history of high blood pressure are more likely than others to develop a severe form of the condition.
(A) and their families have a history of high blood pressure
(B) whose families have a history of high blood pressure
(C) and a history of high blood pressure runs in the family
85. Out of America's fascination with all things antique has grown a market for bygone styles of furniture and fixtures that is bringingback the chaise lounge, the overstuffed sofa, and the claw-footed bathtub.
此时THAT从句恰好符合XDF规则;
而ETS的解释又是怎么样的呢?
一般而言,它均从语意及逻辑入手,再佐以语法规则;以上文为例:
1.语意及逻辑而言:是市场而非其他将chaise lounge, the overstuffed sofa, and the claw-footed bathtub. 带回来;
2.语法规则:THAT从句使用IS单数来规避修饰 bygone styles of furniture and fixtures 之嫌(修饰后者须用复数)
Studies show that young people with higher-than-average blood pressure and their families have a history of high blood pressure are more likely than others to develop a severe form of the condition.
(A) and their families have a history of high blood pressure
(B) whose families have a history of high blood pressure
(C) and a history of high blood pressure runs in the family