The best way to explore _______ countryside is on _______foot.
The engine of the ship was out of order and the bad weather___the helplessness for the crew at sea.
________from space, the earth, with water_____seventy percent of its percentage, looks like a “blue ball.”
_________to train his daughter in computer, he put an ad like this in the paper, “_________, a computer teacher for a ten-year-old girl.”
He will stop showing off, if no notice_____of him.
---Why is he unhappy? ---He has a case_______he is being accused of stealing.