问题
选择题
In the past few years, “My Heart Will Go On” was a popular song among young people, ____ were often heard singing it at parties.
A．who
B．where
C．which
D．what
答案
答案：A
who引导非限定性定语从句，指代先行词又能够people在从句中作主语。
【标签】非限定性定语从句