11. The Internet, as _______ means of communication, has been popular since _______ early 1990s.
A. a ; the B. a ; / C. a ; an D. the £»an
12. So absorbed _______ in his experiment that Newton boiled his watch when he wanted to boil an egg to eat.
A. he was B. he did C. had he D. was he
13. Tom did well in the last English exam, and much to my delight, Mary did _______ than Tom. .
A. no better B. not better C. no worse D. not worse
14. ---I’d like a pen which _______ well.
---Will this one _______?
A. writes, help B. writes; do C. is written; work D. is written; help
15. There is a saying, “Life is 10% _______ happens to us and 90% _______ we respond to it.”
A. that; that B. which; when C. what; how D. who; why