问题补充:
It is reported that two schools, are being built in my hometown,will open next year.
A. they both
B. which both
C. both of them
D. both of which
答案:
A. they both
B. which both
C. both of them
(答案→)D. both of which
解析:考查定语从句。句中先行词为two schools,在句中作both of的宾语,故选D。句意:据报道,正在我家乡建的两所学校,将明年开学。