_____ the crisis of economy getting more and more serious, the government is searching for ways to improve people' s life.
| A．As | B．With | C．When | D．If |
They will start their project，________at helping the poor children to be educated in the west of China.
| A．aims | B．aiming |
| C．being aimed | D．to aim |
Einstein’s Theory of Relativity is so ________that most of us can not understand it.
| A．controversial | B．abstract |
| C．appropriate | D．universal |
Anyone who is in ________of weapons without permission is considered lawbreaking.
| A．command | B．control |
| C．charge | D．possession |
All the students are looking forward to the first ________to take the College Entrance Examinations.
| A．measure | B．attempt |
| C．purpose | D．desire |
Bob would have helped us yesterday, but he-_______
| A．was busy | B．is busy | C．had been busy. | D．will be busy |