---- Do you have Tom’s phone number?
---- Sorry, ________.
| A．I don’t know | B．I can’t remember it |
| C．forget it | D．here you are |
He kicked the snow his shoes before getting in.
| A．to | B．out of | C．off | D．at |
The aged are close companions, and many of have known each other for decades.
| A．them | B．that | C．whom | D．what |
The job market has changed and ourto finding work must change as well.
| A．way | B．method | C．means | D．approach |
__________ the experiment right, I tried again and succeeded.
| A．Not having done | B．Having not done | C．Not doing | D．Not done |
---When shall we meet your cousin at the station?
---His plane took off 2 hours ago, and it _________ arrive at 5pm.
| A．could | B．should | C．must | D．can |