in front of
My dog always likes to walk ahead of me.
bitter
having a sharp, bad taste; not sweet
I don’t like this coffee. It’s too bitter.
chemical
a substance created through a chemical process
My parents use chemicals like bleach and vinegar when they clean the house.
divide
to separate something into two or more sections
She divided the students into boys and girls when the bell rang.
hardly
only just or almost not true or possible
I could hardly solve the math problems. Those are too difficult for me.
in addition
including something else
This game is more fun. in addition, it is cheaper.
rub
to move one's hand back and forth along a surface while applying pressure
My mother rubbed some lotion onto her face.
sensitive
being able to recognize or measure very small changes in something, often relating to scientific instruments
My skin is very sensitive to the sun. I have to wear a lot of sun block.
tongue
the soft, movable piece of flesh, inside the mouth, used for tasting, eating and, in people, for talking
You taste food with your tongue.
vary
to be different or to change and become different
Temperatures across the US vary from each region.