It is worth considering what makes “convenience” foods so popular, and ____ better ones of your own.
| A．introduces | B．to introduce |
| C．introducing | D．introduced |
. I asked the tailor to make a small _____ to my trousers because they were too long.
| A．change | B．variation | C．revision | D．alteration |
Because of the strong sun Mrs. William's new dining room curtains _____ from dark blue to gray within a year.
| A．faded | B．fainted | C．paled | D．diminished |
. 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 |
Evidence obtained from observation and experiment is often used to _____ a scientific theory.
| A．confirm | B．confine | C．conform | D．conceive |
Political parties often differ in their views on various _____ concerning their own countries.
| A．ways | B．measures | C．issues | D．patterns |