1. They’re both sitting in a hot tub.
hot tub
 2. This candy comes in many different flavors. candy
  3. He’s interested in staying healthy, so he exercises regularly.
man

 4. Is the doctor in this afternoon?

(in = available to see patients.)

doctor

 5. She has something in her hand.

 This picture is not in color. It’s in black and white.

woman holding cigar
 6. His company has been in business for more than 20 years.
in business
 7. This zebra lives in a zoo. The zoo is located in San Diego.
zebra
 8. They’re in love with each other.
woman

 9. She works in an office.

She’s in a very good position with the company.

woman working