Mark the letter to indicate the word whose underlined part differs from the others

Mark the letter to indicate the word whose underlined part differs from the others:
shows the temperature in Celsius and Fahrenheit.
B. cyclometer
C. speedometer D. chronometer
attracts many tourists, is often crowded in the summer.
B. which
C. where
D. whose
has ever been invented.
D. whom
17. The
A. thermometer
18. Sydney,
A. that
19. In my opinion, the computer is the greatest machine
A. that
B. of which
20. This is the cutest
A. electric
21. If I were the mayor,
A. will ban
banned
22. I'm going away for a few days. I'll phone you
B. whether
A. if
23. They should give the money to somebody
treatment most.
A. whose
B. which
24. This elephant is the biggest
A. which
B. that
C. who
cooker I've ever seen. It looks like
C. electricity
single-use plastic in this town.
B. electrical
I
B. would ban
27. If we
A. will bring
25. I prefer the 2021 model because the 2019 one looks
A. more
B. less
26. You should have let us know in
A. preparation
B. budget
a peach
C. would have banned
D. electrician
C. until
I get back.
they think needs the
C. who
you will see in the Zoo.
C. whose
D.
D. when
D. what
C. fewer
that you were coming
C. advance
D. where
fashionable.
D. better
D. equipment
our own water bottles, we can help reduce plastic pollution.
D. brought
C. are bringing
B. bring
on
The