She says that she’ll have to close the shop ________ business improves.

It was at the entrance of the zoo ___________ he met his girl friend who had been to London for a better position.

______there is no buying, there will be no killing.

Sam has a bike. He ______ it to school every day.

I wonder what makes you a successful manager.—I ________ as a waiter for five years，which contributes a lot to my today’s work