1.C.you--your
2.A.Where--Where is
3. C. are --is
4. A.What--What's
5. D. Helen--Helen's1.When you are_____,you need a rest. 2.When you are_____,you need a sleep. 3.When you are_____,you need a doctor. 还有写不下了..1.tired累的,疲劳的 2.sleepy 欲睡的； 困乏的 3.ill 生病的,看你这么解答..看懂了...谢谢..