To keep our city beautiful, the _____are always very busy in the streets.We shouldn't throw rubbish everywhere.( )
policemen
cleaners
drivers
I prefer riding a bike to driving a car to work because it is ________ environmentally friendly.
much
more
most
—Do you know ________ AI is being used to create music?
—I’m not sure. Maybe it’s cheaper than paying a musician.
why
if
how
The astronauts of the Shenzhou-18 ________ in the Tiangong space station for about two months since they were sent into space in April this year.
will work
have worked
is working
China Daily named “Growth” ________ its “Word of the Year 2023”.
as
after
for
—________ do you visit your grandparents?
—Usually twice a month.
How long
How often
How far