Question

1) Mary _ six years old

a)has b)have c)is d)are
2) Alice_ go yo te concert tomorrow
a) don't b)isn't c)wasn't d)won't
3) They never_ wine.
a)drink b)drinks c)drunk d)drinking
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Answer 1

Explicación:

1) Mary _ six years old

a)has b)have c)is d)are

En este ejercicio debe ser "has", ya que éste solo se usa para el subject.

2) Alice_ go to the concert tomorrow

a) don't b)isn't c)wasn't d)won't

Se usa don't antes del go.

3) They never_ wine.

a)drink b)drinks c)drunk d)drinking

Es plural, se usa drinking.

Espero ayude un poco :o