To complete the project as planned, the workers were busy working all day, only ______ a short rest once in a while.
| A．to take | B．to have taken | C．having taken | D．taking |
相关试题
The new suspension bridge ___by the end of last month.
| A．has been designed | B．had been designed | C．was designed | D．would be designed |
--How often do you attend the evening classes?
---_____, three times per week.
| A．On the whole | B．On average | C．Little by little | D．In all |
The sun was shining brightly, ____ everything there look more beau
tiful.
| A．making | B．to make | C．made | D．having made |
---May I use your computer, Alex?
---Sorry. Mine _____.
| A．has repaired | B．is being repaired | C．has been repaired | D．is repairing |
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