1. We had a __________ time.

　　2. I __________ what they call these flowers.

　　3. No __________ you can't sleep when you eat so much.

　　4. Television is one of the _________ of modern science.

　　5. You have worked __________ well.

　　答案：

　　( 1 ) 1. true 2. True

　　3. true 4. truly

　　5. truth 6. truth

　　( 2 ) 1. unite 2. united

　　3. united 4. united

　　( 3 ) 1. use 2. use

　　3. useful 4. useless

　　5. used 6. use

　　( 4 ) 1. usual 2. usual

　　3. usually 4. usual

　　5. usually

　　( 5 ) 1. value 2. valuable

　　3. valuables 4. value

　　( 6 ) 1. visitors 2. visit

　　3. visit 4. visiting

　　( 7 ) 1. weigh 2. weight

　　3. weighs 4. weight

　　( 8 ) 1. wide 2. Wide

　　3. wide 4. widely

　　( 9 ) 1. windy 2. wind

　　( 10 ) 1. wonderful 2. wonder

　　3. wonder 4. wonders

　　5. wonderfully