What impressed me most was that they never ________.
| A．lost hearts | B．lost their heart |
| C．lost heart | D．lost their hearts |
I’ve kept up a friendship with a girl whom I was at school ________ twenty years ago.
| A．till | B．with |
| C．about | D．since |
In the experiment we kept a watchful eye ________ the developments and recorded every detail.
| A．in | B．at |
| 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 |