Since the opening and reform policy, China a boom in its economy.
| A．enjoys | B．has been enjoying | C．enjoyed | D．having enjoyed |
Just because they make more money than I do, _____ they seem to look down on me.
| A．so | B．and |
| C．but | D．不填 |
He was not an actor, who often appeared on stage, _____ a writer, writing stories.
| A．but | B．and |
| C．then | D．so |
The point is not who said the words, _____ they are true or not.
| A．but whether | B．and whether |
| C．but how | D．and how |
I’m sorry, _____ I won’t be able to come tonight.
| A．for | B．and |
| C．but | D．then |
As it was almost time for the flight, all the passengers got ______ the plane.
| A．around | B．abroad |
| C．aboard | D．ahead |