__ his telephone number or e-mail address, she had some difficulty getting in touch with John.
| A．Not knowing | B．Not to know | C．Not known | D．Not having known |
In the experiment we kept a watchful eye ________ the developments and recorded every detail.
| A．in | B．at | C．for | D．on |
Books are the most important records we keep ________ man’s thoughts, ideas and feelings.
| A．up | B．of | C．for | D．on |
I don’t think it’s fair to judge a person ________ their clothes.
| A．in | B．from | C．with | D．on |
I am anxious about what notes he made in the back of his diary ________ things to mend or replace.
| A．by | B．in | C．with | D．of |
The customer bargained with the shopkeeper for a long time, and finally they agreed ________ the price.
| A．to | B．with | C．on | D．at |