用所给词的适当形式填空
1．(2014·广东高考)We got a little sunburned/sunburnt (sunburn), but the day had been so relaxing that we didn't mind.
2．(2014·北京高考)Last night, there were millions of people watching (watch) the opening ceremony live on TV.
3．(2014·北京高考)There are still many problems to_be_solved (solve) before we are ready for a long stay on the Moon.
4．(2014·北京高考)The film star wears sunglasses. Therefore, he can go shopping without being_recognized (recognize)．
5．(2014·全国卷)Today there are more airplanes carrying (carry) more people than ever before in the skies.
6．(2014·福建高考)Having_spent (spend) the past year as an exchange student in Hong Kong, Linda appears more mature than those of her age.
7．(2014·湖南高考)Understanding (understand) your own needs and styles of communication is as important as learning to convey your affection and emotions.
8．(2014·湖南高考)To_free (free) ourselves from the physical and mental tensions, we each need deep thought and inner quietness.
