In winter, we must pay attention to _________.

It is strange that the small boy _________ work out such a difficult exercise, which is even hard to settle for adults.

Last week, only two people came to look at the house, ___ ___ wanted to buy it.

What did the doctor say —Heasked how long _________.

Perhaps each of us has moments in our lives _____we desperately search for something everywhere but it is just under our noses.