請依下文回答第 16 題至第 20 題        For most pet lovers, pets are parts of the family. For some, pets are even more important than family members. They see pets as indispensable partners, and spoil and love them as much as or more than parents do their kids. Therefore, their mission in life becomes   16  their pet’s well-being, and making sure they stay healthy and active.        For instance, pet lovers often wish to   17   what their pets do when they are away. In order to   18   their pets, a new technology called a “smart collar” was developed. This wearable  19   enables pet owners to follow their pets’ activities. It can also observe pets’ health and exercise habits. Voyce Health Monitor, which collects health information about a dog, is an example.        In addition to following pets’ behavior and gathering pets’ health information, some products feature a microphone and built-in speaker which allow pet owners to communicate with their pets when they are not present. The   20   in technology have made the relationship between pets and their owners more convenient and accessible.
【題組】16
(A) looking after
(B) looking away
(C) looking down
(D) looking up