I. 单项填空：（共10小题，每题1分，满分10分）
1.Attracting ___ senior citizens, Florida is ___home to the largest population of elderly Americans.
A. / ; / B. the; the C. the ; / D. / ; a
2. I am afraid I'm not ___to help with the show next weekend.
A. available B. dependable C. valuable D. convenient
3. Having climbed to the top of the mountain, we were able to see many wonderful houses ___ in the thick ____ forest.
A. hidden; growing B. hiding; growing
C. hidden; grown D. hiding ;grown
4. As we all know, every minute, __ full use of __ our lessons ,will do good to our students.
A．which makes; studying B．when made; to study
C．that is made ;study D．that is made ;studying
5. —Did you attend Tom’s wedding?
---I ___ to, but I went to Shanghai on business.
A. intend B. was intending C. had intended D. have intended
6. This novel was concerned ___ the World War II, while most teenagers are more concerned ___the hero’s
