Both [ɔ] and [ʌ] are produced with strong muscle tension in the mouth.

• True

• False

The vowel [a] is produced with a lot of mouth opening.

• True

• False

The vowel in 'dog' is produced with lip rounding.

• True

• False

The first vowels in 'color' and 'collar' are the same.

• True

• False

The vowels [ɔ], [ʌ], and [a] are all back vowels.

• True

• False