Dave has challenged me to a game of squash on Sunday.
Learning a second language is a challenge, but with continued effort you can make continual progress.
The first serious challenge of this new government is to bring the budget under control.
It appears that the Canucks
will not pose a serious challenge to Colorado in this, the first round of the play-offs.
Scott wanted to challenge a course, so he wrote the exam for it, but unfortunately he failed.
I much prefer a challenging job with lots of responsibility to an easy, boring job.
Kirstie
Alley once remarked that you'll never be disappointed if you always keep an eye on uncharted territory, where you'll be challenged and growing and having fun.
Barbara De Angelis once remarked that what allows us, as human beings, to psychologically survive life on Earth, with all of its pain, drama, and
challenges, is a sense of purpose and meaning.
Joyce A. Myers once observed that teachers can change lives with just the right mix of chalk and challenges.
Mary Pettibone Poole once said that to repeat what others have said requires education; to challenge it requires brains.
Differences create the challenges in life that open the door to discovery.
In ancient times, Armenia was a powerful nation which challenged the might of the Roman Empire.
Small town soccer teams in Costa Rica often arrange matches by challenging other teams over the radio.
Political instability is currently the greatest challenge facing the newly independent Republic of Tajikstan.
The mountains in the north of Chad would be a challenging climb for the adventurous if they weren't off-limits due to possible guerrilla activity.
The government of East Timor faces great challenges in rebuilding the country after years of war and occupation.
Dominant male buffalo roam singly throughout their herd, searching for mating opportunities, and challenging each other.
The elderly face numerous challenges presented by both physical decline, and the attitudes of society in general.
The principal challenger to Venus Williams in this tennis tournament is her sister Selena.
Discussion question: What is the biggest challenge presently facing you in your life?