. If my father ______ here yesterday, he would have stopped me from going surfing.

“If you stop dropping litter, I’ll kiss pig.” the head teacher promised the students at a school meeting.

(2013·高考天津卷)I think watching TV every evening is a waste of time—there are________ meaningful things to do.

a parent is not always easy, and being a parent of a child with special needs often carries with _______ extra stress.

_______ by a CCTV reporter how he felt about his failure in the match, he simply said he would be back.