9. 一I must apologize_____ you know ahead of time．
一That’s all right．
| A．for letting not | B．for not letting |
| C．to let not | D．not to let |
The figure skating team will look forward to changing their medal into a gold ____ at the Pyeongchang 2018 Olympic Winter Games, ___ they have been dreaming of for many years.
| A．it; one | B．that; it | C．one; one | D．ones; that |
While protests have removed the president from his position, the country has been suffering a sharp _____ in its economy.
| A．decline | B．decoration | C．tendency | D．frequency |
Sustainable living is ____ lifestyle that attempts to reduce _____ society’s use of the natural resources.
| A．the; the | B．a; a | C．a; the | D．the; / |
–Are you tired?
-- _______. I can’t walk on a step farther and I am dying for some water.
| A．Not really | B．Not a bit |
| C．Not at all | D．Not a little. |
---How was your trip to Sichuan?
---Wonderful! I’ve never had _____ one before.
| A．a pleasant | B．a more pleasant |
| C．most pleasant | D．the most pleasant |