What is this?
Field
What is this?
Canoeing
What is this?
Hiking
He (is/are/was/were) in his cabin
was
What is this?
Mountain
What is this?
Horse riding
What is this?
Playing volleyball
What is this?
Cabin
What is this?
Pool
He (is/are/was/were) in his cabin
is
He (is/are/was/were) at the pool
was
What is this?
Mountain biking
What is this?
Fishing
What is this?
Lake
What is this?
Swimming
What is this?
Playing football
They (is/are/was/were) in the forest
were