—How long do you think it will be___ the Stock Market returns to normal?
—At least one year, I guess.
| A．before | B．when | C．until | D．that |
In the past few years, My Heart Will Go On was a popular song among young people, _____were often heard singing it at parties．
| A．who | B．which | C．they | D．that |
---I regret _____you John has been fired．
---I can hardly believe my ears．He’s such a fine worker．
| A．telling | B．having told | C．to tell | D．to have told |
— We did not see him at the lecture yesterday．
— You _______ him, since I went to an international conference with him．
| A．mustn’t have seen | B．can’t have seen |
| C．couldn’t see | D．needn’t have seen |
But when I got _______ the town ought to have been, all I found was a gas station．
| A．where | B．which | C．what | D．that |
The Turners consider ________a computer, which is commonly considered _____a great help in our work and study.
| A．to buy; to be | B．buying ; to be |
| C．to buy; being | D．buying; being |