The couple heard from their son yesterday and they were very happy.( )
A.listened to
B.met
C.called
D.received a letter from
As soon as the national hero came into the hall, everyone became ________ and stood up to welcome him.
tired
cheerful
upset
—Our class did well in the school singing competition.
—Yes, you sang ________ of all.
beautifully
more beautifully
most beautifully
Since 2021, our school ________ all kinds of after-school services for students.
provides
is providing
has provided
We are making a big cake ________ it’s Dad’s birthday today.
because
until
once
It’s important for us ________ hard in order to have a better life.
work
to work
working