a) The moon goes round the sun.

=> The moon doesn't go around the sun.

=> It goes around the earth.

b) It is hot in winter.

=> It isn't hot in winter.

=> It is cold in winter.

c) Mice catch cats.

=> Mice don't catch cats.

=> Cats catch mice.

d) Water boils at 50 degrees Celsius.

=> Water doesn't boil at 50 degrees Celsius.

=> It boils at 100 degrees Celisus.

e) Spiders have six legs.

=> Spiders don't have six legs.

=> They have eight legs.

f) The Red River flows into the Atlantic Ocean.

=> The Red River doesn't flow into the Atlantic Ocean.

=> It flows into the Pacific Ocean.

g) Gold is cheaper then sliver.

=> Gold isn't cheaper than silver.

=> It is more expensive than silver.

h) Carpenter make things from metal.

=> Carpenters don't make things from metal.

=> They make things from wood.

a)

Mr. Long is not very old.

He is short and fat.

He has short hair.

He is ugly.

He is wearing a suit.

b)

Nam is young.

He is tall.

He has short hair.

He is handsome.

He is wearing a T-shirt and jeans.

c)

Lan is young.

She is tall and slim.

She has short hair.

She is beautiful.

She is wearing a skirt.

) The moon goes round the sun.

=> The moon doesn't go around the sun.

=> It goes around the earth.

b) It is hot in winter.

=> It isn't hot in winter.

=> It is cold in winter.

c) Mice catch cats.

=> Mice don't catch cats.

=> Cats catch mice.

d) Water boils at 50 degrees Celsius.

=> Water doesn't boil at 50 degrees Celsius.

=> It boils at 100 degrees Celisus.

a) The moon goes round the sun.

=> The moon doesn't go around the sun.

=> It goes around the earth.

b) It is hot in winter.

=> It isn't hot in winter.

=> It is cold in winter.

c) Mice catch cats.

=> Mice don't catch cats.

=> Cats catch mice.

d) Water boils at 50 degrees Celsius.

=> Water doesn't boil at 50 degrees Celsius.

=> It boils at 100 degrees Celisus.