in the novel that he did not notice his father at the door.
| A．So he was absorbed | B．So was he absorbed |
| C．So absorbed he was | D．So absorbed was he |
Don’t give up regardless of difficulty and failure,______ you ‘ll never achieve your goals.
| A．and | B．but | C．or | D．so |
Steps must be taken ______this kind of disaster will never happen again.
| A．because | B．even if | C．as | D．so that |
Please keep me informed_______ the change of your address as soon as possible.
| A．of | B．for | C．with | D．by |
One of the most important questions they had to consider was _____of public health.
| A．what | B．this | C．that | D．which |
The lady walked around the shops,______ an eye out for bargains.
| A．keep | B．kept | C．keeping | D．to keep |