A strange man followed me yesterday.
[?] [?] [?] [?] a strange man yesterday.

The police found a dagger in the hall.
[?] [?] [?] in the hall.

They think that someone stabbed Mr Smith.
They think that [?] [?] [?].

They did it very quickly.
[?] [?] very quickly.

Where did they find his body?
Where his body ?

They always catch criminals.
Criminals always .

They speak German in that shop.
German in that shop.

People often throw papers everywhere.
often everywhere.

People can't understand it the first time.
can't the first time.

You must not forget them.
must .