Harvard.edu.

I wear contact lenses.

Tom lost a contact lens.

Since when are you wearing contacts?

Butter is soft.

Where's the butter?

The butter went bad.

Where is the butter?

I'm looking for my contact lens.

Have you found your contact lenses?

Have you found your contact lenses?

Lenses with two distinct optical powers are also called bifocals .

Did you find your contact lenses?

Since when are you wearing contacts?

When did you start wearing contacts?

Drink liters of oil

Fuel to the fire

Is that peanut butter?

I hate peanut butter.

I am eating butter.

Will you find my contact lens for me?

She took off her glasses and put her contacts in.

We also have lentils in our assortment.

How long have you been wearing contacts?

When did you start wearing contacts?

When did you start using contact lenses?

When did you start wearing contact lenses?

4. Heat the sesame oil in the wok and melt the butter.

Tom found his contact lens near the table.

I still haven't found my contact lens.

I still haven't found my contact lens.

Tom couldn't find his contact lens.

Since when have you been using contact lenses?

The lenses are called the eye lens and the field lens.

Please pass me the butter.

Pass me the butter, please.

Butter is made from cream.

Butter is made from milk.

Butter is made from milk.

What is butter made of?

Shall I check the oil?

She substituted margarine for butter.

Is there any butter in the refrigerator?

She used margarine instead of butter.

We're out of butter.