It works! :D

exercises-hello/hello.py

@@ -9,3 +9,4 @@
 #
 # TODO: write your code below
 
+print "hello world"

exercises-hello/script.py

@@ -0,0 +1,2 @@
+#!/usr/bin/env python
+print "this is a python script!"

exercises-spellchecker/dictionary.py

@@ -15,23 +15,28 @@ def load(dictionary_name):
 
     Each line in the file contains exactly one word.
     """
-    # TODO: remove the pass line and write your own code
-    pass
+    words = set()
+    words_file = open(dictionary_name, "rb")
+    for word in words_file:
+        word = word.strip()
+        words.add(word)
+    words_file.close()
+    return words
 
 def check(dictionary, word):
     """
     Returns True if `word` is in the English `dictionary`.
     """
-    pass
+    return word in dictionary
 
 def size(dictionary):
     """
     Returns the number of words in the English `dictionary`.
     """
-    pass
+    return len(dictionary)
 
 def unload(dictionary):
     """
     Removes everything from the English `dictionary`.
     """
-    pass
+    dictionary.clear()