3. Were you __________ in finding a new house?

　　4. He is a __________ writer.

　　5. I finished my training __________ .

　　答案：

　　( 1 ) 1. services 2. service

　　3. served 4. serve

　　5. servants

　　( 2 ) 1. short 2. shortly

　　3. shortcomings 4. short

　　5. shorten

　　( 3 ) 1. shyness 2. shyly

　　3. shy

　　( 4 ) 1. silent 2. silence

　　3. silence 4. silently

　　( 5 ) 1. simply 2. simply

　　3. simple 4. simple

　　( 6 ) 1. slight 2. slight

　　3. slightly 4. slightly

　　( 7 ) 1. socialist 2. social

　　3. social 4. society

　　5. social

　　( 8 ) 1. soft 2. softly

　　3. soft

　　( 9 ) 1. strength 2. strongly

　　3. strong 4. strong

　　5. strong

　　( 10 ) 1. succeed 2. success

　　3. successful 4. successful

　　5. successfully