1. Why don't you go boating on the river? (改为同义句)
  ______  ______ go boating on the river?
2. Bill sat next to him in the classroom. (改为一般疑问句)
  ______ Bill ______ next to him in the classroom?
3. My sister is helping my mother wash clothes now. (用just now替换now)
  My sister _____ my mother wash clothes ______  ______.
4. Please tell me, "Why does Sally miss her parents?" (连成含宾语从句的复合句)
  Please tell me ______  ______  _______  ______  _______.
5. I wanted to know, "Is he doing his homework?"  (连成含宾语从句的复合句)
  I wanted to know ______  ______  _______  _______ his homework.