Select the option that expresses the given sentence in active voice.

The coloured clothes should not be washed with the whites.

You should not wash the coloured clothes with the whites.

The correct active voice form of the given sentence is You should not wash the coloured clothes with the whites.

The passive voice of the sentence is "The coloured clothes should not be washed with the whites." This sentence is in the simple present tense, which is used to describe an action that happens regularly or habitually. The passive voice of the sentence is formed by putting the subject of the active sentence after the verb "to be" and the past participle of the main verb. In this case, the subject of the active sentence is "coloured clothes" and the main verb is "wash." The past participle of "wash" is "washed." So, the passive form of the sentence is "The coloured clothes should not be washed with the whites."

The active voice of the sentence is formed by putting the subject of the passive sentence before the verb and removing the word "by." In this case, the subject of the passive sentence is "you" and the verb is "wash." So, the active form of the sentence is "You should not wash the coloured clothes with the whites."

The other options are incorrect because:

• Do not be washing the coloured clothes with the whites. This sentence is in the present progressive tense, which is used to describe an action that is happening now but is not finished.
• Do not washed the coloured clothes with the whites. This sentence is in the past tense, but the action of the coloured clothes being washed with the whites is not happening now.
• You should not have washed the coloured clothes with the whites. This sentence is in the past perfect tense, which is used to describe an action that happened in the past before another action happened. However, in this case, the action of the coloured clothes being washed with the whites has not happened yet.