— It’s difficult to buy a ticket online because of the 1 billion clicks daily.
—_____________. There can be errors for every single step.
| A．Forget it! |
| B．Don’t mention it. |
| C．Nothing is impossible. |
| D．I can’t agree with you more. |
Tony couldn’t remember ______he had turned off the computer before he left the office．
| A．that | B．where |
| C．when | D．whether |
All of us are pleased to see the problem ______ so quickly．
| A．solve | B．solving |
| C．to solve | D．solved |
She has been dreaming a future ____ she can spend more time growing flowers．
| A．that | B．when | C．where | D．which |
If George had followed his father’s advice，he ________ a lawyer now．
| A．is | B．would be |
| C．has been | D．would have been |
______ we have planned ahead might change when we put it into practice．
| A．Whatever | B．Whenever |
| C．Whoever | D．However |