To read newspaper before going to bed seemed to me a rule ____.
| A．to never break | B．never to have broken |
| C．never to be breaking | D．never to be broken |
Mr.Smith asked the boy a question________he could go to the concert with him.
| A．whether | B．that |
| C．what | D．if |
When you are reading，make a note of ________ you think is of great importance.
| A．which | B．that |
| C．what | D．when |
I’d like to work with ________ is honest and easy to get on with.
| A．who | B．whoever |
| C．whomever | D．no matter who |
Water，which seems so simple and common，is ________ makes life possible.
| A．what | B．that |
| C．which | D．how |
I just wonder ________ that makes him so excited.
| A．why it does | B．what he does |
| C．how it is | D．what it is |