30. Jennifer, who is my best friend, said she would go abroad for further education __________.
| A．before long | B．long before | C．shortly after | D．very fast |
I had just finished all my homework and was about to go to bed the phone rang.
| A．when | B．until | C．while | D．before |
--- How is Dennis getting along with his work?
--- Well, he could always _______ a new idea for increasing sales.
| A．come up with | B．come about | C．come on | D．come over |
When he came to the door, my father ___ him at once although he was now a very old man.
| A．knew | B．looked at | C．recognized | D．found |
–Do you mind my smoking here?
--______.
| A．Yes, you'd better not | B．No, certainly not | C．That's all right | D．both A and B |
This problem is not worth____ again.
| A．to be discussed | B．discussing | C．being discussed | D．to discuss |