A Wechat (微信) is an invention ______ can help people talk to friends, share photos, ideas and feeling freely.
A. which B. who C. whose D /
A Wechat (微信) is an invention ______ can help people talk to friends, share photos, ideas and feeling freely.
A. which B. who C. whose D /
【答案】A
【解析】考查定语从句。 which can help people talk to friends, share photos, ideas and feeling freely是定语从句，修饰先行词invention，而先行词是物，关系代词用which或that。故选A。