It puzzles the scientists _____ some mammals produce their young _____ others lay eggs.
| A．that; while | B．what; while | C．that; as | D．what; as |
As far as I am concerned, education is about learning and the more you learn, ____.
| A．the more for life are you equipped | B．the more equipped for life you are |
| C．the more life you are equipped for | D．you are equipped the more for life |
---Have you persuaded him?
---Yes. After some hours of discussion, I ____ to reason him in accepting the new plan.
| A．had managed | B．would manage | C．have managed | D．managed |
. How pleased the emperor was ____ what the cheats said!
| A．hearing | B．heard | C．hear | D．to hear |
____ that Mary was able to set up new branches elsewhere.
| A．So successful her business was | B．So successful was her business |
| C．So her business was successful | D．So was her successful business |
As we all know, it was ____ that resulted in the terrible car accident.
A. because of her carelessness B because she was careless
C. her being careless D she was so careless