The condition of the dwelling-house or any of the common parts has deteriorated owing to acts of waste by, or the neglect or default of, the tenant or any other person residing in the dwelling-house and, in the case of an act of waste by, or the neglect or default of, a person lodging with the tenant or a sub-tenant of his, the tenant has not taken such steps as he ought reasonably to have taken for the removal of the lodger or sub-tenant.