Complete the sentences with suitable words.

• The chef is familiar with both Japanese and French [1].

• Flour, sugar, eggs, and cocoa are some [2] of chocolate cake.

• Mushrooms don't stay [3] for long.

• Food that contains lots of [4] is not good for our health.

• You can have a [5] the night before the surgery.

• [6] is not as nutritious as fresh food.