The millions of calculations involved, ____by hand, would have lost all practical value by the time they were finished.
A: had they been done
B: they had been done
C: having been done
D: they were done
A: had they been done
B: they had been done
C: having been done
D: they were done
举一反三
- The millions of calculations involved, had they been done by hand, ________ all practical value by the time they were finished.
- The millions of<br/>calculations involved, had they been done by hand, ________ all<br/>practical value by the time they were finished. A: had lost B: would lose C: would have lost D: should have lost
- The millions of calculations (involved) , (had they) been done by hand, would (lose) all practical value (by the time) they were finished. A: involved B: had they C: lose all D: by the time
- The millions of calculations involved, had they been done by hand, ______all practical value by the time they were finished.( ) A: could lose B: would have lost C: might lose D: ought to have lost
- 10. The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished. A: could lose B: would have lost C: might lose D: ought to have lost