We held the graduation ceremony________ the headmaster gave a speech.
| A．with which | B．what | C．which | D．where |
How many more decades will have to pass ____ scientists succeed in providing a cure for cancer?
| A．when | B．since | C．before | D．until |
_______ information cost him many chances of finding jobs．
| A．Lack of | B．Short of | C．Lack | D．Lacking of |
The question occurred to me ______ we were to get the machine needed．
| A．that | B．what | C．why | D．where |
My money ______．I must go to the bank to draw some of my savings out before I’ve none in hand．
| A．has run out | B．is running out | C．has been run out | D．is being run out |
Our world ___________ to live in without so much pollution．
| A．would be the best one | B．will be the better one |
| C．will be the best one | D．would be a far better one |