Most of us know we should cut down on fat, but knowing such things isn’t much help when it ________ shopping and eating.

Whose coat is this– It_______ be John’s. It’s ______small for him.

The teacher told us there ________ only a sun in the world.

Thosewhosinging may join us.

The retired workers were invited to the company， ________surprise，changes had been so great over the years.