title: Check if following items exist in the List<T>
body: <p>I have a list of strings and I need to check if specific items(not one item) exist in that list. </p>
  
  <pre><code>List&lt;string&gt; strings = new List&lt;string&gt;() {"one","two","three","four","five" };
  </code></pre>
  
  <p>I need to find out if "one" and "three" is in that list. Is it possible with one linq query?</p>
  
  <p>Thanks for the help!</p>