Someone is at the door. ________ must be Mr Smith.

With no bridge, they had to swim across the river to the _______ bank to ______ the news.

Jack has been working hard these days.It's obvious that there is ________he is eager for but didn't mention to us.

We can’t have lunch at the restaurant, because _________．

—Shall I sit at this end of the boat or the other end? —If you keep still, you can sit at ________end.