Had they not been working so hard，they______(not achieve)so much.
举一反三
- John had been working hard and ___________.( ) A: so his brother did B: so was his brother C: so his brother had D: so had his brother
- Jack had been working hard and ______. A: so his brother had B: so had his brother C: so was his brother D: so his brother did
- 中国大学MOOC: She has been working so hard that she feels quite ____________.
- John had been working hard and ________.
- 中国大学MOOC: I have been working so hard all day that I really need to ______.