Tell John not to leave the house________he makes sure that all the lights are turned off.[ ]

________the afternoon of June 1st, many foreigners arrived ______Beijing.

____, the floor is really slippery. —Thank you for reminding me.

He _______ me five dollars for it, but at first he said to me the work would be done ______.

If you take my ________, you’ll make a lot of money inthe trade.