diff --git a/book-10-lesson-5.module b/book-10-lesson-5.module
index 51ac83dc..6b2baff8 100644
--- a/book-10-lesson-5.module
+++ b/book-10-lesson-5.module
@@ -573,7 +573,7 @@ INSTRUCTION: Use the words from the box: about, can't, could, how to, I'll, is..
 INPUT: type
 CHECK: exact
 
-TEMPLATE: Mark ____{leaves} for Rome tomorrow.
+TEMPLATE: Mark ____{leaves|is supposed to leave} for Rome tomorrow.
 RESPONSE: Mark leaves for Rome tomorrow.
 
 TEMPLATE: He ____{is supposed to|has to|needs to} pick up his tickets at the airport today, but he ____{is} not ____{able to} do it.
diff --git a/book-11-lesson-5.module b/book-11-lesson-5.module
index a7d07ca6..3aa8f6fc 100644
--- a/book-11-lesson-5.module
+++ b/book-11-lesson-5.module
@@ -288,7 +288,7 @@ ANSWER: any|some
 FEEDBACK: Anyone who is changing from one lane to another should signal.
 
 TEMPLATE: ____ drives fast on this road.
-ANSWER: no
+ANSWER: no|some
 FEEDBACK: No one drives fast on this road.
 
 TEMPLATE: ____ who speeds here gets a ticket.
diff --git a/book-12-lesson-1.module b/book-12-lesson-1.module
index e0647d94..cf9c5592 100644
--- a/book-12-lesson-1.module
+++ b/book-12-lesson-1.module
@@ -1562,7 +1562,7 @@ OPTION: b | *c*an
 OPTION: c | *k*ey
 ANSWER: a
 
-PROMPT: instruc*t*or
+PROMPT: instru*c*tor
 OPTION: a | *k*eep
 OPTION: b | *c*ertain
 OPTION: c | *s*o
@@ -1637,10 +1637,10 @@ TEMPLATE: ____{may be} an airport.
 RESPONSE: may be a shopping center.\nmay be a place to watch sports.\nmay be an airport.
 
 TEMPLATE: Mark went to a *stadium* and bought a ticket.
-TEMPLATE: ____{may be} a shopping center.
+TEMPLATE: ____{is not} a shopping center.
 TEMPLATE: ____{may be} a place to watch sports.
-TEMPLATE: ____{is not} an airport.
-RESPONSE: may be a shopping center.\nmay be a place to watch sports.\nis not an airport.
+TEMPLATE: ____{may be} an airport.
+RESPONSE: is not a shopping center.\nmay be a place to watch sports.\nmay be an airport.
 
 TEMPLATE: Mark went to a *stadium* and bought a ticket for a football game.
 TEMPLATE: ____{is not} a shopping center.
diff --git a/book-9-lesson-2.module b/book-9-lesson-2.module
index ad5dcd70..af67d2aa 100644
--- a/book-9-lesson-2.module
+++ b/book-9-lesson-2.module
@@ -798,7 +798,7 @@ PROMPT: Look at the houses. Are they similar, the same, or alike? {bk09-l2b-f3-h
 OPTION: a | similar
 OPTION: b | the same
 OPTION: c | alike
-ANSWER: a
+ANSWER: a|c
 FEEDBACK: The houses are similar. {bk09-l2b-f3-05-a.mp3}
 
 PROMPT: Look at the trucks. Are they similar, the same, or different? {bk09-l2b-f3-trucks.jpg|Two pickup trucks side by side: a dark truck with KEVIN on the door, and a smaller plain light truck} {bk09-l2b-f3-06-q.mp3}