-Look! The man at the gate _____ be our headmaster.He is always standing there every morning.
-No,it_______ be him.He is holding a meeting in the office now.( )
must; can't
must; mustn't
can't; can't
can't; mustn't
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
The air pollution is very serious in our city. Something about it now.( )
can do
must do
was done
must be done
The Great Wall is a place of interest. All of us there before.( )
has been
have been
has gone
have gone