从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑．
| 1. Usually, _______ care for children's ______. |
| 2. ________ you are free, why not go skating with us? |
| 3. Great men never give up ______ difficulty. |
| 4. ----- _____ is the engineer's husband ? ----- The neighbor of your brother in the corner. |
| 5. There are ______ custom tailors and dressmakers in the U. S. than in European countries. |
| 6. A fireman discovered the __________ of the fire. |
| 7. That young man has made so much noise that he ___ not have been allowed attend the concert. |
