Giúp mình với không giải thích cũng được mình cần đáp án

VI. Find and correct the mistake in each of the following sentences. 1. Peter (A)usually (B)has his car (C)washing (D)at weekend. 2. (A)Do you know the boy (B)whose bicycle (C)was stole (D)last night ? 3. (A)Until I (B)got enough money, the picture (C)that I wanted (D)had sold. 4. (A)H ...