Can somebody check it for me please

Can somebody check it for me because I think there is nothing wrong with these codes.
my gratitude in advanced

on (press) {
totalResult = 0;
if (qa1.getValue() == true) && (qa2.getValue()== true)
&&(qa3.getValue()== true) {

setProperty(next2, _visible, true);
if (qa1.getValue() == true) {
totalResult = totalResult +1;				display1 = "that's right ";				displayAnswer1= " You are so clever ^_^";
}

if (qa2.getValue()== true) {				display1 = " I sorry that is not correct ~!~";		displayAnswer1 = "The answer is:  number (1)";
}
if (qa3.getValue()== true) {				display1 = " I sorry that is not correct ~!~";
displayAnswer1 = "The answer is:  number (1)";
}
setProperty(qa1, _visible, false);
setProperty(qa2, _visible, false);
setProperty(qa3, _visible, false);
			
  }else{
    display1 = " Please choose your answer ";
 }

}

thank you very much