Although today is Sunday, but he don’t gets late
(Correct choice: a. late)

The sentence should be: "Although today is Sunday, he doesn’t get late." Here, "late" is the appropriate adjective to describe the state of being behind schedule.

Peter can’t see Lucy in the company now Because he’s having breakfast.
(Correct choice: b. now)

The sentence should be: "Peter can’t see Lucy in the company now because he’s having breakfast." "Now" indicates the current time.

He was a friendly waiter.
(Correct choice: a. friendly)

The sentence should be: "He was a friendly waiter." "Friendly" is the adjective that describes the waiter's demeanor.

This is my uncle’s house which is a beautiful house.
(Correct choice: b. beautiful)

The sentence should be: "This is my uncle’s house which is a beautiful house." "Beautiful" is the correct adjective to describe the house.

Bill is an excellent student. He works harder than the other people in his class.
(Correct choice: a. harder)

The sentence should be: "Bill is an excellent student. He works harder than the other people in his class." "Harder" is the comparative form of "hard," used to compare the intensity of work