Question

—Linda, together with her parents, ______up the mess in the park at the moment.
—It’s meaningful to be a volunteer. Let’s join them.

A．is cleaning

B．are cleaning

C．has cleaned

D．have cleaned

Answer 1

A

此题考查主谓一致问题，her parents 是从属结构，真正的主语是Linda，故谓语动词用单数。