While intelligent people can often________the complex,a fool is more likely to complicate the simple.
___________ has helped to save the drowning girl is worth praising.
— I drove to Zhuhai for the air show last week. — Is that ____________ you had a few days off?
No one can be sure _____________ in a million years.
It was a matter of ____________ would take the position.
___________ caused the accident is still a complete mystery.