45. Those who are of great determination are ____ to make great achievements.

A. maybe　　　　 B. likely　　　　　　 C. probable　　　　　 D. possible

44. The Smiths consider _____ a computer, which is commonly considered _____ a great help in their work and study.

A. to buy; to be　　　　 　　　　　　　　B. buying; to be

C. to buy; being　　　　 　　　　　　　　D. buying; being