---I’m sorry! I would have taken him to hospital if I had known he was seriously ill.
--- But ______ .
| A．you didn't | B．you hadn't | C．he wasn't | D．you aren't |
The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
| A．should | B．must | C．will | D．can |
— Tom is never late for work. Why is he absent today ?
— Something _______ to him.
| A．must happen | B．should have happened |
| C．could have happened | D．must have happened |
But for the help you gave me, I _______ the examinations.
| A．would have passed | B．would pass |
| C．wouldn’t have passed | D．wouldn’t pass |
When a pencil is partly in a glass of water, it looks as if it ______.
| A．breaks | B．has broken |
| C．were broken | D．had been broken |
You didn’t let me drive. If we ____ in turn, you ____ so tired.
| A．drove; didn’t get | B．drove; wouldn’t get |
| C．were driving; wouldn’t get | D．had driven; wouldn’t have got |