Ⅰ.单词拼写
1．The longer this situation __obtains__(存在), the more extensive the problems become.
2．Our main __objective__(目标) was the recovery of the child safe and well.
3．It is of __vital__(至关重要的) importance that we get there by six o’clock.
4．The next few weeks are going to be __crucial__(关键性的)．
5．Our research attempts to __evaluate__(评价) the effectiveness of the different drugs.
6．I have __distinct__(清晰的) memories of him in his last years.
7．The dentist may decide that the wisdom teeth need to be __extracted__(用力拔出)．
8．__Boil__(煮沸) plenty of salted water, and then add the spaghetti.
9．A stream __flowed__(流动) gently down into the valley.
10．She refuses to __acknowledge__(承认) the need for reform.
