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

此題考查主謂一致問題，her parents 是從屬結構，真正的主語是Linda，故謂語動詞用單數。