It still remains a question _____ life exists on any other planet in the solar system.

You can do whatever you like _______ you follow the school rules.

n pulled out a gold watch,_____weremade of small diamonds.

Could you help me take care of my pet dog on the 19th?— I’m afraid I’m not that day.

inese agricultural tax wasn’t completelyabolished______2006, which reduced the farmers’ burden greatly.