1.   Fall back upon is more formal than fall back on and is mostly used in writing.

2.   Round upon is more formal than round on and is used mostly in writing.

3.   A quick glance at a standard form partnership agreement gives a good impression of the wide range of matters upon which agreement is desirable.

4.   Altchek made a breif phone call and upon his return was shocked to hear Martin had to play.

5.   In other words, Cowboys coaches were intent upon not having Carter take any chances, or even venturing out of the pass pocket.

6.   Most special wide receivers are born, some are made, and a precious few are intent upon meshing the two.

7.   Some classmates and parents are shocked upon seeing him, but they smile and greet him warmly as they sign a game T-shirt for him.

8.   The patient has reason to believe he has a sexually transmitted disease and upon examination it is clear that he is right.

9.   They wanted to be responsible for their own lives, but they feared pulling away from the parents upon whom they were dependent for love and security.

10.   AS is customary upon entering a Japanese restaurant, greetings of irashaimase met us when we stepped over the threshold of Agehan at the Radisson Shah Alam.