Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Scientists are using highly ________ technology to explore outer space.

ChatGPT is an artificial intelligence _______ designed to engage in human-like conversations.

A ________ library provides access to digital resources such as electronic books and journals through the Internet.

We installed a ________ system in the building, which allows people to use their face to unlock doors.

Smartphones have become ______ in our daily life that even children use them to connect with friends and access the Internet.