Hodgkin lymphoma and non-hodgkin lymphoma are types of a cancer called lymphoma. Lymphoma begins in white blood cells called lymphocytes. Lymphocytes are an important part of the body's …

What trips me up. So, what's the exact difference and when should you use one or the other? What's has to mean what is (in this case); The clause it begins is an embedded question complement clause. The first example has undergone subject-auxiliary inversion to get the auxiliary is next to the …

The first example has undergone subject-auxiliary inversion to get the auxiliary is next to the …