You can never imagine what great trouble I have had ______the patient who receive a serious wound.
| A．treat | B．to treat | C．treating | D．treated |
The most satisfying life is one ______ you know the things you’re interested in and pursue it in your own way.
| A．why | B．where | C．to whom | D．on which |
— Li Lin hasn’t turned up yet, but he promised to come to the party.
— He ______ home. He is a man of keeping his word.
| A．can’t leave | B．won’t be leaving |
| C．could have left | D．must have left |
The rescue team didn’t leave until they were able to find no ______ of life in the ruins after the destructive quake.
| A．symbol | B．sight | C．sign | D．signature |
______ all the texts that are written, stored and sent electronically, a lot of them are still ending up on paper.
| A．For | B．From | C．Except | D．By |
Science is more than a collection of unrelated facts; to be meaningful and valuable, ______ must be arranged to show generalized character.
| A．which | B．those | C．it | D．they |