A hearty laugh relieves physical tension, _____your muscles relaxed for over half an hour.
| A．to leave | B．left | C．leaving | D．leave |
19. I don’t want to see him. His ______ to me is always rather cold.
| A．opinion | B．behavior | C．action | D．Attitude |
18. You may give this message to________is in the office.
| A．who | B．easy | C．modern | D．certain |
17．Most hotels in Sanya were full during the Spring Festival, but finally we______find a room in a small guesthouse near the seaside.
| A．ought to | B．could | C．might | D．were able to |
16. Now many people_____higher degrees probably finish up nowhere when they try to get a highly-paid job.
| A．with | B．in | C．for | D．At |
15. Nowadays with the development of science, more and more new technology_______to the fields of IT.
| A．has introduced | B．was introduced | C．will introduce | D．is being introduced |