The calculations, had they been done by hand, ______all practical value by the time they were finished.
| A．had lost | B．would lose | C．should have lost | D．would have lost |
Once a schedule is made, only by strictly ________ it, can we avoid putting off till tomorrow what should be done.
| A．arranging | B．presenting |
| C．measuring | D．observing |
_______ he lain quietly as what the doctor had said, Tom __________ so much now.
| A．Had; hasn’t suffered |
| B．Had; wouldn’t suffer |
| C．Were; hadn’t suffered |
| D．Should; wouldn’t be suffered |
At present, even selling newspaper and magazines will make a very good .
| A．benefit |
| B．good |
| C．interest |
| D．profit |
She will take a(an)class in English.
| A．proceeded |
| B．advanced |
| C．progress |
| D．active |
Working hard is not a only of great success, but it is among the essential requirements.
| A．sign |
| B．signal |
| C．guarantee |
| D．supposition |