ШАГ 1Выберите верный вариант
ШАГ 2Добавляйте понравившиеся фразы в Избранное
As is a conjunction, and is usually followed by a noun or pronoun in the nominative case. Like isn't a conjunction, but an adjective which behaves like a preposition being followed by a noun or pronoun in the objective case.
Lose (with one o) is the common verb meaning not to be able to find. Loose (with double o) is an adjective meaning unfastened, free: The horse was loose in the field.
Coward (= one without courage) is the noun. The adjective is cowardly.