How did the terrible situation _______?
| A．result from | B．come about | C．result in | D．come out |
Scientists study ____ human brains work to make computers.
| A．when | B．how | C．that | D．whether |
（2012辽宁卷）The newcomer went to the library the other day and scarched for he could find about Mark Twain.
| A． wherever | B． however | C．whatever | D．whichever |
_____ I want to tell you is the deep love and respect I have for my parents.
| A．That | B．Which | C．Whether | D．What |
_______ you said at the meeting describes a bright future for the company.
| A．When | B．How | C．What | D．That |
It’s good to know _____ the dogs will be well cared for while we’re away.
| A．what | B．whose | C．which | D．that |