GLOBE International is an organization _____to finding effective solutions to the problems with sustainable development.
| A．committed | B．having committed |
| C．commits | D．committing |
After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed .
| A．in vain |
| B．in case |
| C．in time |
| D．in trouble |
This is a(n) __________ arrangement, not a permanent one.
| A．frequent |
| B．temporary |
| C．actual |
| D．individual |
When the boy playing by the river fell into the river, I was out of the room _______.
| A．in flash |
| B．in a flash |
| C．as a flash |
| D．for a flash |
His grandpa was so poor at that time that he had to get up atdawn every day and walk to the factory indistance.
| A．/; a |
| B．/; the |
| C．a; the |
| D．the; the |
It wasn’t until dark _________ he found _________ he thought was the correct way to solve the problem.
| A．when , that |
| B．that , that |
| C．when , what |
| D．that , what |