--- I apologize for not being able to join you for dinner.
--- ______.
| A．Go ahead | B．Not to worry. |
| C．That’s right | D．Don’t mention it. |
High-speed trains which travel through my home town ______ up to 250 km per hour make it a small world.
| A．with | B．against | C．at | D．over |
The necklace the woman bought is , because it is made of glass.
| A．priceless | B．worthwhile | C．valuable | D．worthless |
—Sorry, I didn’t hear the door bell ring.
—Your bell . Perhaps it needs repairing.
| A．never worked | B．is never working |
| C．never works | D．had never worked |
———It was a green dinner. _______
———Thanks. But it really only took an hour.
| A．You must be tired. | B．I enjoyed it very much. |
| C．You must have spent all day cooking. | D．I have never had it before. |
Maria is constantly making efforts, she deserves the goal of entering the key university.
| A．achieving | B．to achieve | C．being achieved | D．to be achieve |