_______ we start thinking and believing we can do it, anything is possible.
| A．Since | B．While | C．Until | D．Once |
_____________ he said at the meeting astonished everybody present.
| A．What | B．That | C．The fact | D．The matter |
_____________ you don’t like him is none of my business.
| A．That | B．Who | C．What | D．Whether |
It worried her a bit _____________ her hair was turning grey.
| A．which | B．that | C．if | D．for |
_____________ the Games will be held in Beijing is not known.
| A．Whenever | B．If | C．Whether | D．That |
Can you make sure _____________ the gold ring?
| A．where Alice had put | B．where had Alice put |
| C．where Alice has put | D．where has Alice put |