— What do you think of the price of these computers?
— They are at least equal in price to, if not cheaper than, ____at the other companies.
| A．it | B．ones | C．that | D．the ones |
She didn't come to the party last Sunday. ________， she must have made the party more exciting.
| A．If she came | B．Would she come |
| C．Had she come | D．Did she come |
Students ________ remain in their seats until all the papers have been collected.
| A．would | B．shall |
| C．will | D．could |
—Did Ann fail in English?
—She ________. Don't you notice that she looks depressed?
| A．might | B．must |
| C．may have | D．could have |
I wrote a letter to John for his help during my high school years，without which I ________ the college entrance exam.
| A．would fail | B．would have failed |
| C．should fail | D．must have failed |
________ me what you wanted to know, I should not have wasted my time talking so much with you.
| A．Had you told | B．You have told |
| C．You had told | D．Have you told |