See the flag on the top of the building. That was we did this morning.
—How unhappy your roommate looks! —Yes, but he's not willing to tell me what it is ________ is troubling him.
When the millionaire was young, he was very poor. Only by doing parttime jobs during the summer holiday ________ afford to pay his college fees.
So quickly ________ is a possibility today may be a reality tomorrow.
The Chinese government promised that under no circumstances ________ the efforts to provide universal and lowcost health care.
Kate had a terrible time this summer. Not a day ________ without having some unpleasantness with her sister at home.