Not until I began to work ______how much time I had wasted.
| A．didn’t I realize | B．did I realize | C．I didn’t realize | D．I realized |
Will you be home________to see the children before they go to bed?
| A．on time | B．in time |
| C．at a time | D．at one time |
She lost heart since she failed in the exam.She felt________about her future.
| A．puzzle | B．puzzling |
| C．puzzled | D．puzzles |
It makes his life quite different_______he has received education abroad.
| A．that | B．which |
| C．what | D．how |
—Mary looks down today.What is up?
—Well，________happened between Mary and me is none of your business.
| A．wherever | B．whoever |
| C．whatever | D．no matter what |
_______young people see and hear in the media helps them to figure out how the world works.
| A．Which | B．That |
| C．What | D．How |