Before the problem can be solved，it must be obvious ________ the problem itself is.(2011·湖南，31)
| A．what | B．that | C．which | D．why |
— Would you please give an example to show how useful a computer is?
— Sure. __________ people get __________ information from it every day.
|
Don’t ___that all these who get good grades at school will be surely successful in the future.
|
Mary, you can’t imagine what great difficulty I’ve had _____ him with the project.
|
The teacher demanded that he __________ his homework at once.
|
The old man had a son and two daughters, _____treated her well, ____made her sad.
|