David ______to come here and have supper with us today. I think he will come _______ a minute.
The play next month aims mainly to show the local culture.
The hospital is ______ signs telling patients that it can offer only limited services.
You really need to go out and get some fresh air and sunshine. You ______ overworked during the last two weeks.
—How long do you think it will be ________ we win the football World Cup? —Perhaps twenty years.
Silk from China found its way to India, the Middle East and Rome, _______ spices and glass, which was not known to China.