Can anybody me to do the exercise a?

4) We already left.

5) Since 2000 they won the championship.

6) I didn't eat anything yesterday because I felt sick.

7) The car looks very clean. You washed it?

8) Yesterday she got away.

9) He did his homework three days ago.

10) It began raining since this morning.

the answer is a)   a sentence of death costs the state "almost three times as much as a sentence of life in prison" (delon 147)

comfortable

explanation:

one type of the adjectives is predicate adjective. a predicate adjective is an adjective which follows a linking verb and modifies or refers back to the main subject of that linking verb.

it usually is used just before the noun it modies.

here in this example:

'penguins seem comfortable in the coolest habitats', comfortable is the predicate adjective which follows the linking verb 'seem' and modifies the noun.