I remember there _____ a lot of fish in Yanglan Lake.Now it has been polluted.
What a pity!I think we should play a role in protecting the environment.( )
A.are used to haveB.are used to be
C.used to haveD.used to be
Judy ,is that boy with glasses______new classmate?
Yes. Let's say hello to_________.( )
we; he
us; himself
ours; his
our; him
Have you ever worked as______volunteer during the COVID﹣19 pandemic (新冠疫情)?
Yes. It was_____unforgettable experience for me.( )
an; an
an;a
a; an
a;a
Jack's uncle has got the COVID﹣19. Now he is in a hospital.
.( )
It doesn't matter
That's all right
I'm sorry to hear that
Be careful next time
Don't get off the bus until it .( )
will stop
stop
stopped
stops
His office is on the top of the tall building. You should take a lift to the floor.( )
first
thirtieth
thirty
thirteen