Convert query from SQL to Entity Framework code first approach

I'm trying to translate my SQL query into Entity Framework code, but I'm having trouble.

Here is my SQL command.

select * from tests where id in(select testid from PatientTests where PatientId=@id)

This is a test model, and I want to get records from it.

public class Tests
{
    [Key]
    public int Id { get; set; }

    [Required]
    [Display(Name = "Test Name")]
    public string TestName { get; set; }

    [Display(Name = "Short Name")]
    public string  ShortName { get; set; }

    [Display(Name="Technical Name")]
    public string  TechName { get; set; }

    [Required]
    [Display(Name ="Test Price")]
    public float TestPrice { get; set; }

    [Display(Name = "Sub Department")]
    public int SubDeptId { get; set; }

    [Display(Name = "Center")]
    public int CenterId { get; set; }

    public string Separate { get; set; }


    [Display(Name = "Sub Department")]
    [ForeignKey("SubDeptId")]
    //relation of departments table
    public virtual SubDepartments subDepartments { get; set; }

    [Display(Name = "Centers")]
    [ForeignKey("CenterId")]
    //relation of departments table
    public virtual Centers centers  { get; set; }

}

Model for patient testing

 public class PatientTest
{
    [Key]
    public int Id { get; set; }

    [Display(Name ="Patient Id")]
    public int PatientId { get; set; }

    [Display(Name ="Test Id")]
    public int TestId { get; set; }

    [Display(Name ="Doctor")]
    public int DoctorId { get; set; }

    [Display(Name="Center")]
    public int CenterId { get; set; }


    [Display(Name = "Test")]
    [ForeignKey("TestId")]
    //relation of Tests table
    public virtual Tests Tests { get; set; }

    [Display(Name = "Doctor Reference")]
    [ForeignKey("DoctorId")]
    //relation of Doctors table
    public virtual Doctors Doctors { get; set; }

    [Display(Name = "Center Reference")]
    [ForeignKey("CenterId")]
    //relation of Centers table
    public virtual Centers Centers { get; set; }

    [Display(Name = "Patient")]
    [ForeignKey("PatientId")]
    //relation of Patient table
    public virtual Patient Patient { get; set; }

}

I thus want a record from the tests database where the patient's ID must match. Only the specified patient Id record and the test table testid must be fetched.