Second Conditional
Complete the sentence: If I __ (be) an astronaut, I __ (take) photos of Earth.
"If I were an astronaut, I would take photos of Earth."
Put this sentence into the present simple passive: "People use Velcro all over the world."
Velcro is used all over the world.
What is the name of a person who travels and works in space?
astronaut
This is the person whose job is to do scientific experiments and make discoveries.
scientist
In a good team, members should __ each other and work together.
support
Finish this second conditional sentence: She would be healthier if...
"...she exercised every day."
Put this sentence into the past simple passive: "They invented the mobile phone in the 1970s."
The mobile phone was invented in the 1970s.
This is the force that keeps us on the ground on Earth, but is much weaker on the Moon.
gravity
Before you sell a new product, you need to __ a test to make sure it works.
run
This adjective describes a person who you can trust to do their job well.
reliable
Correct the mistake in this sentence: "If we live on the Moon, we would see Earth in the sky."
If we lived on the Moon, we would see Earth in the sky.
Form a question in the past simple passive: "this device / invent / in Japan?"
What is "Was this device invented in Japan?"
This is the special protective clothing that astronauts must wear when they go on a spacewalk.
spacesuit
This useful material was discovered by mistake and is now used in mattresses and seats.
memory foam
Complete the sentence with the correct adverb: "______, the rocket launched without any problems."
Successfully (or Luckily, Hopefully)
Rephrase this sentence using 'unless': "You can't go on the space mission if you don't pass the test."
You can't go on the space mission unless you pass the test.
Complete the sentence in the present simple passive: "Hundreds of books __ (publish) every year."
What is "Hundreds of books are published every year."
If there was no water __ on a planet, nothing could survive there for long.
supply
This adjective describes something that is easy to carry or move around.
portable
If two people in a team have a strong disagreement, they have an __.
argument
Create a second conditional question using the phrase: "could speak five languages"
What would you do if you could speak five languages?
Rephrase this active sentence as a passive one: "The Japanese produce a lot of cars."
A lot of cars are produced in Japan.
This is the large, round object that moves around a star (like Earth around the Sun).
planet
This is the sticky material that was invented after someone studied how burrs stuck to his dog's fur.
Velcro
This adverb means "in a way that is mainly or mostly true".
mainly