You are looking at joining jim's gym. read the extract of their information leaflet below, and correct the error in tense.

we
have
a
range
of
state-of-the-art
equipment
for
cardio-vascular
workout
and
muscle
building.
we
also
had
a
20
metre
pool
and
a
spa.
every
week,
we
run
10
classes
ranging
from
relaxing
yoga
and
pilates
to
high-energy
body
pump.
if
you're
looking
for
a
personal
training
programme,
we
have
a
team
of
six
excellent
personal
trainers
with
a
combined
50
years'
experience
between
them.
after
using
our
facilities,
you
can
complete
your
experience
with
a
meal
or
a
drink
in
our
members-only
cafe.

the error is "We  also had a 20 metre pool."

Explanation: In grammar, tense is a category that expresses time reference with reference to the moment of speaking. Tenses are usually manifested by the use of specific forms of verbs, particularly in their conjugation patterns. In English, tenses include past, present and future. When writing we need to make sure that be consistent in the use of tense. In the given extract all the information is in present (we have, we run, etc) except for the phrase "We  also had a 20 metre pool" which is in past, it should be "We  also have a 20 metre pool."

- "when these words are put together to convey a meaning it is known as a sentence. a sentence is a group of words that makes complete sense. placing of words in a sentence is very important. the second sentence is a question."

i would need the available options to be listed to give you an answer.