一、選擇填空( )1. This is____ in the shop.A. an expensive book B. more expensive bookC. the most expensive book D. the expensive book( )2. I left home for England in 2002___ the first time. And I have been there___ three times.A. for, for B. for, / C. /, for D. /,/( )3. Is he____ danger or______ danger?A. in, out B. in, out of C. out, in D. on., Of out( )4. Here is a desk_____ wood.A. made from B. be made of C. made of D. be made from( )5. Pass me the books, two _____. A. at a time B. at once C. at one time D. once( )6. Who helped you clean the room? I ____ my own.A. did on B. did it on C. helped of D. helped it of( )7. The workers in this factory work_____ 10 hours a day.A. for up to B. up for to C. to up D. up to for( )8. The number of wild animals ________now.A. is getting fewer and fewer B. is getting smaller and smallerC. are getting fewer and fewer D. are getting small and small