From: Rob Pike .) appears instead of a name, all the
 package's exported identifiers declared in that package's
 package block will be declared in the importing source
-file's file block and can be accessed without a qualifier.
+file's file block and must be accessed without a qualifier.
 
@@ -5693,7 +5693,7 @@ Assume we have compiled a package containing the package clause
 package math, which exports function Sin, and
 installed the compiled package in the file identified by
 "lib/math".
-This table illustrates how Sin may be accessed in files
+This table illustrates how Sin is accessed in files
 that import the package after the
 various types of import declaration.