Jim’s mother just wants to know that makes him so nervous.
| A．why it does | B．what he does |
| C．how it is | D．what it is |
We will be for ______ promises to volunteer to help us solve the puzzling problem.
| A．whoever | B．any one of them | C．those who | D．anyone |
Tim Bemers-Lee is generally considered ______ the World Wide Web, on which all the information is shared by all.
| A．to have founded | B．having founded | C．founding | D．to found |
I won’t have you ______ up and down all day.
| A．run | B．ran | C．to run | D．running |
Every minute is made good ______ of ______ for the coming national examinations.
| A．used…preparing | B．use…to prepare | C．useful…to prepare | D．use…preparing |
The question that puzzled us is _____ we can get rid of the air pollution in the area.
| A．that how | B．how is it that | C．what is it | D．how it is that |