1.
The
new
lab
equipment
was
installed
by
the
technicians
in
the
science
department.
【Agent:
technicians】

2.
The
concert
tickets
were
sold
out
within
minutes.
【Agent:
unspecified】

3.
The
cake
was
eaten
by
the
children
at
the
party.
【Agent:
children】

4.
The
car
was
washed
by
the
neighbor
yesterday.
【Agent:
neighbor】

5.
The
decision
was
made
by
the
committee
during
their
meeting.
【Agent:
committee】

6.
The
book
was
written
by
a
famous
author.
【Agent:
a
famous
author】

7.
The
project
will
be
completed
by
the
team
of
engineers.
【Agent:
team
of
engineers】

8.
The
house
was
built
by
the
construction
company.
【Agent:
construction
company】

9.
The
mistake
was
made
by
the
employee,
not
the
supervisor.
【Agent:
employee】

10.
The
report
was
delivered
to
the
boss
yesterday.
【Agent:
unspecified】

11.
The
room
was
cleaned
by
the
hotel
staff.
【Agent:
hotel
staff】

1
2.
The
package
was
shipped
by
the
courier
service.
【Agent:
courier
service】

1
3.
The
message
was
received
by
the
recipient.
【Agent:
recipient】

1
4.
The
painting
was
created
by
a
talented
artist.
【Agent:
a
talented
artist】

1
5.
The
problem
was
solved
by
the
IT
department.
【Agent:
IT
department】

1
6.
The
project
was
approved
by
the
board
of
directors.
【Agent:
board
of
directors】

1
7.
The
letter
was
written
by
my
sister.
【Agent:
my
sister】

1
8.
The
invitation
was
sent
by
email.
【Agent:
unspecified】

1
9.
The
job
offer
was
accepted
by
the
candidate.
【Agent:
candidate】

20.
The
package
was
opened
by
the
recipient.
【Agent:
recipient】