Across all media，people are debating about________we need to keep track of every school bus on China’s road.
| A．how | B．whether |
| C．which | D．where |
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 |
A great many new ideas _____at this education conference to improve the students’ study.
| A．came out | B．came up | C．put forward | D．put away |