| 1 | As a matter of fact, the way of practice is vague. | |
| 2 | If that is so, move on or go back to the drawing board. | |
| 3 | Under National we are drifting without a plan. | |
| 4 | The homework problems were so complex that all but the most brilliant students couldn't make heads or tails of them. | |
| 5 | The homework problems were so complex that all but the most brilliant students couldn't make heads or tails of them. |