Sentence examples for challenges was that from inspiring English sources

"One of the big challenges was that we didn't have Humint" — human intelligence — "collection capabilities in areas where terrorists existed," the adviser told me.

One of the challenges was that she always knew about a half-hour before I did what all my test scores were.

Governor Walker said that part of the reason for the fiscal challenges was that previous governors and legislatures pushed fiscal problems down the road with short-term fixes.

One of the hardest challenges was that many Mexicans — from top leaders to ordinary citizens — were skeptical that any solution would help.

The net result of all the challenges was that a number of states sent two competing delegates to Lake of the Ozarks, one pledged to Edgeworth, the other to Rove, each claiming to be legitimate.

One of the challenges was that the first room was too small.

"The big challenge was that beautiful dog," he said.

How challenging was that?

A more stringent revegetational challenge is that following strip-mining.

The challenge is that essential medicines often run out long before the next supply is due.

The most challenge is that flow regime around horizontal wells is not constant.