Question

I want to know all negative effects the Internet           our lives.

A．has in

B．have in

C．has on

D．have on

Answer 1

C

本题考查主谓一致和介词。此题中the Internet           our lives.是定语从句，省略了引导词。定语从句的主语是the Internet，故谓语动词have用单数形式has。省略的引导词代替先行词effects做has的宾语，构成have effect表示“对……有影响”，介词要用on。