diff --git a/eBook/06.9.md b/eBook/06.9.md
index f852900..1930f97 100644
--- a/eBook/06.9.md
+++ b/eBook/06.9.md
@@ -117,8 +117,8 @@ func MakeAddSuffix(suffix string) func(string) string {
 现在，我们可以生成如下函数：
 
 ```go
-addBmp := MakeAddSuffix(“.bmp”)
-addJpeg := MakeAddSuffix(“.jpeg”)
+addBmp := MakeAddSuffix(".bmp")
+addJpeg := MakeAddSuffix(".jpeg")
 ```
 
 然后调用它们：
diff --git a/eBook/09.5.md b/eBook/09.5.md
index 06ba89b..de388b0 100644
--- a/eBook/09.5.md
+++ b/eBook/09.5.md
@@ -65,7 +65,7 @@ func main() {
 下面的代码试图访问一个未引用的变量或者函数，甚至没有编译。将会返回一个错误：
 
 ```go
-fmt.Printf(“Float from package1: %f\n”, pack1.pack1Float)
+fmt.Printf("Float from package1: %f\n", pack1.pack1Float)
 ```
 
 错误：
diff --git a/eBook/13.0.md b/eBook/13.0.md
index b9b4d59..ad84690 100644
--- a/eBook/13.0.md
+++ b/eBook/13.0.md
@@ -22,7 +22,7 @@ Go 是怎么处理普通错误的呢？通过在函数和方法中返回错误
 
 ```go
 if value, err := pack1.Func1(param1); err != nil {
-	fmt.Printf(“Error %s in pack1.Func1 with parameter %v”, err.Error(), param1)
+	fmt.Printf("Error %s in pack1.Func1 with parameter %v", err.Error(), param1)
 	return    // or: return err
 } else {
 	// Process(value)
diff --git a/eBook/13.5.md b/eBook/13.5.md
index 7d6fb89..84fd2df 100644
--- a/eBook/13.5.md
+++ b/eBook/13.5.md
@@ -35,7 +35,7 @@ func errorHandler(fn fType1) fType1 {
 	return func(a type1, b type2) {
 		defer func() {
 			if err, ok := recover().(error); ok {
-				log.Printf(“run time panic: %v”, err)
+				log.Printf("run time panic: %v", err)
 			}
 		}()
 		fn(a, b)
diff --git a/eBook/13.8.md b/eBook/13.8.md
index 3aeff4f..6f744dc 100644
--- a/eBook/13.8.md
+++ b/eBook/13.8.md
@@ -101,7 +101,7 @@ include $(GOROOT)/src/Make.pkg
 ```go
 func TestEven(t *testing.T) {
 	if Even(10) {
-		t.Log(“Everything OK: 10 is even, just a test to see failed output!”)
+		t.Log("Everything OK: 10 is even, just a test to see failed output!")
 		t.Fail()
  	}
 }
diff --git a/eBook/13.9.md b/eBook/13.9.md
index cd7b565..c74fb85 100644
--- a/eBook/13.9.md
+++ b/eBook/13.9.md
@@ -12,9 +12,9 @@ var tests = []struct{ 	// Test table
 	out string
 
 }{
-	{“in1”, “exp1”},
-	{“in2”, “exp2”},
-	{“in3”, “exp3”},
+	{"in1", "exp1"},
+	{"in2", "exp2"},
+	{"in3", "exp3"},
 ...
 }
 
@@ -22,7 +22,7 @@ func TestFunction(t *testing.T) {
 	for i, tt := range tests {
 		s := FuncToBeTested(tt.in)
 		if s != tt.out {
-			t.Errorf(“%d. %q => %q, wanted: %q”, i, tt.in, s, tt.out)
+			t.Errorf("%d. %q => %q, wanted: %q", i, tt.in, s, tt.out)
 		}
 	}
 }