Daniel is one of those students who always willing to help others .A. isB. areC. wasD. we

问题补充：

Daniel is one of those students who always willing to help others .

A. is

B. are

C. was

D. were

答案：

A. is

(答案→)B. are

C. was

D. were

解析：B 考查定语从句。先行词为those students是复数形式，故定语从句的谓语用复数，排除A、C。主句是一般现在时，故排除D。