He’s never been late for school, _________ he—_________. He always comes on time.

They are broadening the bridge to ________ the flow of traffic.

.The Professor in the end decided to givethe prize to____he believed had a good sense of English.

你在路上遇到一个你认识的人，你应该说 ____________。

It worries the couple a lot ______ their only son is behaving worse and worse these days.