KimYi Nhek

The teacher is explaining --------some health diseases.

• in

• about

• with

How many things are impossible for us to understand about the universe?

• two

• three

• four

The Universe is ................................................

• 13.7 billion years old

• 13.7 million years old

• 13.7 trillion years old

We are ............the way to my friend's house.

• with

• in

• on

Our solar system consists of the sun and eight planets and some moons that are connected to the sun by ---------

• Time

• size

• gravity

He cares ------her a lot.

• about

• with

• of

Our solar system was formed.........

• 4.5 billion

• 5 billion

• 2million

There are more than -----------galaxies in the observables universe

• 70million

• 170 billion

• 170trillion

You can pay------that at the case register.

• with

• in

• for

He is scared ...... heights.

• with

• of

• in