What's this?
It's a volcano.
We were reading in the library, WHILE / WHEN we heard a strange noise.
when
How long HAVE / HAS people used cellphones?
have
What is his job?
He's a plumber.
My friends WENT / HAVE GONE to Brazil in 2008.
went
What's this?
It's a bridge.
The wind WAS / WERE blowing.
was
Arthur became a king after he had PULL / PULLED the sword from the stone.
pulled
We HAVE BEEN / ARE to Washington many times.
have been
What's this?
It's a temple.
What's this?
Flood
My sister is interested ABOUT / IN medicine.
in
- "How old is the Earth?" -They asked how old the Earth WAS / IS.
was
I thought you HAVE VISITED / HAD VISITED this city before.
had visited
- "When did you receive the email?" - They asked when they RECEIVED / HAD RECEIVED the email.
had received
What is her job?
She is an architect.
You broke the vase! You are responsible OF / FOR doing it!
for