CONTEXT: I was trying to open the lock with the key , but someone had filled the keyhole with chewing gum, and I couldn't get *it* out.

Multi-choice question: Do "the key" and "it" have the same meaning?
no

CONTEXT: Sam's drawing was hung just above Tina's and *it* did look much better with another one below it.

Multi-choice question: Do "Sam's drawing" and "it" have the same meaning?
yes

CONTEXT: We went to the lake , because a shark had been seen at the ocean beach , so *it* was a safer place to swim.

Multi-choice question: Do "the lake" and "it" have the same meaning?
yes

CONTEXT: Tom threw his schoolbag down to Ray after *he* reached the top of the stairs.

Multi-choice question: Do "Ray" and "he" have the same meaning?
no