16. Room service is ________ in the room.
 A. to serve meals
 B. to do service
 C. to clean up
 D. to take care of guests
 17. It is necessary to greet the guest with a hearty smile ________ to create a pleasant atmosphere and make the guest
 feel at home.
 A. so that
 B. in order
 C. such as
 D. because of
 
 18. By the time he retires Mr. Smith ________ in this hotel  for almost 40 years.
 A. will have worked
 B. will work
 C. have worked
 D. will has worked

II. Reading comprehension.(15 points)
 
 Passage 1
 
 Each student at an engineering college in Canada gets a steal  ring upon graduation as well as graduation certificate.
 There is a story behind the unusual ring. Several years ago, a  graduate from this engineering college designed an iron-steel  bridge. Unfortunately, because of mistakes in his design, the  bridge collapsed soon after it came into use.
 This event shook the engineering college. And the head of the  college decided to take back the UUFramwork of the iron-steel  bridge and use it as the material for making rings to give the  students upon their graduation. The college wants the students  to remember this lesson forever so as to avoid making such  mistakes again.
 
 1. Upon graduation each student is given a steel ring as a
 A. gift from the college
 B. lesson to avoid making any mistakes in design
 C. model to make designs
 D. warning not to make iron-steel bridge
 
 2. The wrongly-designed iron-steel bridge was finally
 A. shipped away
 B. sold at a low price
 C. made into many rings
 D. used again after repairing
 
 3. The ring is quite unusual because
 A. its design is excellent
 B. it is very expensive
 C. it is different from others
 D. it had a sad story
4. The best title for the passage is
A. A Great Mistake
B. A Shocking Event
C. A Warning Ring
D. A Wrongly-designed Bridge
 
5. Which of the following statements is true according to the passage?
A. The iron-steel bridge collapsed soon after it was built
B. The iron-steel bridge has been used ever since it was built
C. The iron-steel bridge didn’t come into use until it collapsed
D. The bridge collapsed because it was designed by a poor student