Question

1.1.
There is one word missing in each of the following sentences. Write the word in the space
given and put a slash to indicate its place in each sentence.
A submarine is a large vessel that be operated under a....
the water surface. To ensure the safety of the mariners, the
hull, under which huge ballast tanks are located, be a
b. .......
strong one. These tanks be filled with or emptied of
C....
seawater or air. When the submarine is required to travel
on the surface, its ballast tanks be filled with air.
.
This makes the vessel less dense and it floats. When the
submarine to be submerged in water,
e....
its ballast tanks be flooded with seawater.
f.
This action makes the submarine sink and it be
g....
moved about underwater. Submarines be used
h. .....
for military or research purposes.​

Answer 1

Answer:

1. ocean
2. a strong man
3. the air
4. the water
5. ✌✌dont know

Answer 2

Answer:

a. that (can) be

b. located (should) be

c. tanks(used to) be

d. tanks(might) be

e. submarine(ought) to