He is only too ready to help others, seldom, ____, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
Putting in a new window will ______ cutting away part of the roof.
| A．contain | B．comprise | C．include | D．involve |
Mr. Smith was so angry at all _____ Bill was doing ______ he left.
| A．that…what | B．that…that | C．which…which | D．what…that |
–He didn’t feel a bit nervous when _____.
--No. He’d spent a lot of time _____ for it after all.
| A．interviewing…to prepare | B．interviewed…to prepare |
| C．interviewing… preparing | D．interviewed… preparing |
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 |