11.Thank you for your interest ___A___ our host family program for the overseas students in Boulder

　　A. in

　　B. on

　　C. at

　　D. for

　　12.He ___B___ and couldn’t find the way to the hotel

　　A. puzzled

　　B. was puzzled

　　C. is puzzling

　　D. has puzzled

　　13.Our country ___B___ people from all over the world

　　A. is made of

　　B. is made up of

　　C. is consisted of

　　D. is consisted

　　14.Hi， is Mary there， please? — ___A___

　　A. Hold on。 I'll get her

　　B. No， she isn't here

　　C. Yes， she lives here

　　D. Yes， what do you want?

　　15.First turn left on the corner and then turn right ___C___ the fountain

　　A. in

　　B. on

　　C. at

　　D. for

　　16.She asked them to report to the sales manager, ___B___ office is on the first floor

　　A. which

　　B. whose

　　C. who

　　D. that

　　17.You object ____D___， don't you?

　　A. that they come

　　B. that they came

　　C. to their come

　　D. to their coming

　　18.Some people prefer to plan the course of their trip ____A____

　　A. to the finest detail

　　B. within the finest detail

　　C. on the finest details

　　D. to the fine details

　　19.There are two sales divisions, one of ___A___ are under the Line Director, Mr. Smith

　　A. whom

　　B. which

　　C. that

　　D. them

　　20.She had a paper __C____

　　A. publishes

　　B. publishing

　　C. published

　　D. publish