Respuestas
Respuesta:
AFFIRMATIVES
1 Carol and Peter are very good friends
2 Jonathan usually studies at night
3 I always walk 2 miles in the morning
4 We eat out on Sundays
5 Mary does aerobics after classes
6 The store opens at 7:00 o'clock
7 Mr Stevenson has a meeting every week
8 My cousins live in Colombia
9 You play soccer very good
10 My cat likes milk
NEGATIVES
1 Carol and Peter aren't good friends
2 Jonathan doesn't usually study at night
3 I don't always walk 2 miles in the morning
4 We don't eat out on Sundays
5 Mary doesn't do aerobics after classes
6 The store doesn't open at 7:00 o'clock
7 Mr Stevenson doesn't have a meeting
8 My cousin doesn't live in Colombia
9 You don't play soccer very good
10 My cat doesn't like milk
Explicación:
Las oraciones afirmativas de presente simple con tercera persona se diferencian de las oraciones con 1era y 2da persona en que al Verbo Principal se le agrega S o ES
En las oraciones negativas usamos los auxiliares Don't o Doesn't + Verbo en su forma base.
En las oraciones con el Verbo to Be usamos éste tanto en las oraciones negativas como en las afirmativas.