He is sweating heavily. He _______ weightlifting for a long time.
| A．could have practiced | B．can practice | C．must have practiced | D．might practice |
He gained his ______ by printing ______ of famous writers.
| A．wealth, work | B．wealthy, works |
| C．wealthy, work | D．wealth, works |
We worried about ______ he was in good health.
| A．whether | B．if | C．that | D．what |
I ______ the novel by the time you ______ back next week.
| A．have finished, will come |
| B．shall have finished, come |
| C．shall be finished, are going to come |
| D．finish, come |
The number of the audience, ______ we had expected, was a thousand.
| A．whom | B．who | C．as | D．that |
Having been born on the earth, we had no choice but ________ hospitality it offered.
| A．to accept that | B．accept how | C．to accept what | D．accept what |