—Why was Professor Johnson unhappy those days?
—Can't you see it clearly? The only reason was that the theory he stuck to_____ wrong．
| A．proving | B．being proved | C．proved | D．was proved |
They sold ______ boxes of such sweets last week.
| A．four dozens of | B．four dozen | C．four dozen of | D．four dozens |
When asked ________ they needed most, the kids said they wanted to feel important and loved.
| A．what | B．why | C．whom | D．which |
—Do you know Anna’s telephone number ?
—________. As a matter of fact, I don’t know any Anna, either.
| A．I think so. | B．I hope so. | C．I’m afraid not. | D．I’d rather not. |
The _______, I think, he drew from his simple experiment is not scientific.
| A．charge | B．conclusion | C．promise | D．relation |
Alice received an invitation from her boss, ________ came as a surprise.
| A．it | B．that | C．which | D．he |