Eggs in western countries are often sold by _____. 

–I find Chinese people are helpful when traveling around China.–You’re right. I like ______ when people are friendly and helpful.

The girl being a child of _______ intelligence, expecting too much of her would make her nervous.

Half a month later, he found his lost motorcycle         in the woods off the highway.

While the soldier’s idea was interesting, the system was too difficult to be ____.