It is ______ that there are only 30,000 to 50,000 Asian elephants left in the world.

a) period

b) vessels

c) valuable

d) estimated

estimated – verb – judged or calculated, as of the value, quality, extent, size, or cost of something

The 19th century was a _______ of railroad building.

a)documentingb) estimated

c) period

d) vessels

period – noun – a length of historical time

The ocean liner known as the Titanic was larger than all other oceangoing _____ of the time.

a) period

b) vessels

c) valuable

d) documenting

vessels – plural noun – ships or large boats used to transport or carry over water

The excavation gave us some ______ new information about the settlers.

a) valuableb)documentin

gc) estimated

d) period

valuable – adjective – of great use, worth, or importance

The scientists took notes ______ their findings.

a) vessels

b) valuablec)documentin

gd) estimated

documenting – verb – making a record or collecting information.

Susan Ging Lent Production