diff -r d232cff25bbd Doc/library/threading.rst
--- a/Doc/library/threading.rst	Sat Apr 27 00:20:04 2013 +0200
+++ b/Doc/library/threading.rst	Fri Apr 26 22:00:48 2013 -0700
@@ -350,7 +350,7 @@
 When more than one thread is blocked in :meth:`~Lock.acquire` waiting for the
 state to turn to unlocked, only one thread proceeds when a :meth:`~Lock.release`
 call resets the state to unlocked; which one of the waiting threads proceeds
-is not defined, and may vary across implementations.
+is not defined and may vary across implementations.
 
 All methods are executed atomically.
 
@@ -358,7 +358,7 @@
 .. class:: Lock()
 
    The class implementing primitive lock objects.  Once a thread has acquired a
-   lock, subsequent attempts to acquire it block, until it is released; any
+   lock, subsequent attempts to acquire it are blocked, until it is released; any
    thread may release it.
 
    .. versionchanged:: 3.3