. –Tom, go to the office to fetch the papers. Who would you rather with you, Wang Lin or Li Feng? --- .
It suddenly _____ to the detective that the professor was probably murdered by his own wife .
---What made her unhappy? ---_____.
The machine might break down someday in the future, ____, you can dial this number for help.
_________ returns first will win the big prize.
—Mary said Leo worked really hard. — _______.