Jack won the first prize in the computer competition. Two years of hard work and patience _______ in the end.
| A．paid up | B．paid out | C．paid back | D．paid off |
Political parties often differ in their views on various _____ concerning their own countries.
| A．ways | B．measures | C．issues | D．patterns |
Evidence obtained from observation and experiment is often used to _____ a scientific theory.
| A．confirm | B．confine | C．conform | D．conceive |
Jack is good, kind, hard-working and intelligent. _____, I can't speak too highly of him.
| A．As a result | B．By the way | C．On the whole | D．In a word |
You can’t guess what difficulty I had_____ your home.
| A．find | B．to find | C．finding | D．found |
As a result of the strong sun, my new dining room curtains _____ from dark blue to gray within a year.
| A．faded | B．fainted | C．paled | D．diminished |