None of them had expected that the middleaged engineer died______his design uncompleted.[ ]

Help yourself to some more meat, Linda.—- ________

His first lecture is of great use to ourdevelopment. But his latest one is ______ worth attending.

Hey, guys. Do you often have a good time ___ after-school activities–Of course, we do. And we always have a lot of time ________soccer.

What is Tom up to? He’s seldom turned in his assignments these days, ________?[ ]