These line charts illustrate how the ownership of electrical appliances and the amount of time spent doing housework
varies
over decades from Correct subject-verb agreement
vary
1920s
to Correct article usage
the 1920s
2010s
.
It is presented in the first chart that the proportions of households with electrical appliances Correct article usage
the 2010s
shared
increasing trends in general over the past decades. Verb problem
have shown
By contrast
, people tended to spend less and less time on their housework manually from 1920 to 2019.
Within different electrical facilities, the refrigerator was Linking Words
of
the least Correct pronoun usage
one of
requirement
in 1920 Replace the word
required appliances
but
it turned out to be one of the most popular Punctuation problem
, but
electrical
appliances after 1960. The requirement Correct word choice
apply
of
Change preposition
for
the
vacuum cleaners Correct article usage
apply
also
Linking Words
grown up
quickly and reached almost 100% in 2000, shortly after the refrigerator in 1980. The proportion of washing machines experienced Wrong verb form
grew
an
decline Correct article usage
a
at
1960 Change preposition
in
but
it still kept an increasing trend after that. It Punctuation problem
, but
finally
reached about 75% in 2019.
Compared with that, people Linking Words
spent
less and less time on their housework manually. The working hours kept Wrong verb form
spend
decline
from 50Replace the word
declining
h
per week in 1920 to merely 10Correct your spelling
hours
h
per week in 2019.Correct your spelling
hours