I couldn’t stand the of not being able to help when my best friend was in trouble.
| A．frustration | B．motivation | C．expectation | D．Confusion |
He’s so ill that his father has to send for _______ doctor.
| A．one | B．some | C．a | D．the |
The price of _______ bike will partly be determined by the sort of ______ material used.
| A．the; the | B．the; / | C．/; the | D．/; / |
Jumping out of _______ train running at a speed of 200 kilometers per hour is quite _____ dangerous practice.
| A．/; the | B．/; a | C．a; a | D．the; the |
---Are you satisfied with what the captain explained?
---Not at all. It couldn’t have been________.
| A．so bad | B．worse | C．the worst | D．the best |
In the USA, Columbus Day is_______ the _____ of Christopher Columbus in the New World.
| A．in the memory of; arrival | B．in memory of; arrival |
| C．in the memory of; arriving | D．in memory of; arriving |