_____ unemployment and crime are high, it can be assumed that the latter is due to the former.
| A．Before | B．Where | C．Unless | D．Until |
It took _____building supplies to construct these energy-saving houses. It took brains,too.
| A．other than | B．more than | C．rather than | D．less than |
He said to us that he ____the teacher’s instructions.
| A．must follow | B．followed |
| C．follow | D．must have followed |
I hear a number of workers in the factory_____out of work.
__Yes, and the number _____quite huge.
| A．are; is | B．is; are | C．is; is | D．are; are |
More than one child _____to the cave to see the strange animal.
| A．have gone | B．are gone | C．has been | D．is been |
To improve your spoken English, you’d better listen to the tape ______.
| A．generally | B．fluently | C．frequently | D．gradually |