:::::::::
Exercise 4 - Passive with Modals
Complete the sentences with the
passive form
of the verb with the given
modal
.
The space station (
couldn't
,
complete
)
1
before the end of the twentieth century. It (
may
,
finish
)
2
early in the twenty-first.
Many diseases (
can
,
cure
)
3
by plants found in the rain forest. Sadly, the world's rain forests (
could
,
destroy
)
4
during our lifetime if we don't stop cutting down trees. Most people would agree that our forests (
ought to
,
protect
)
5
.
This room (
have got to
,
lock
)
6
. All the lab equipment is here, and it (
must
,
keep
)
7
safe.
Martin's science project (
could
,
choose
)
8
for the state fair. The judges' decision (
should
,
made
)
9
by next week.
I was reading an interesting article this morning. It said that Asia and North America (
could
,
join
)
10
someday by land transportation. A railroad across the Bering Strait (
may
,
build
)
11
within the next 25 years.
Life in space (
must
,
understand
)
12
better. Scientists hope that researchers from many countries (
will
,
seek
)
13
for future space projects. Chances for international cooperation, like that on the space station, (
can't
,
ignore
)
14
.
SCORE
%
Rules
-
Ex.1
-
Ex.2
-
Ex.3
-
Ex.4
-
Ex.5
Exercise 4 - Passive with Modals
