Good day to all!

I have this Main Movieclip. Under myMainMoveClip is a drag and drop quiz. I dont know why I cant snap my movieclip to the other movieclip.

can anyone help me?

Here's my code...
I put this inside my bbLion_mc


//Code for Drag n Drop

on (press) {
startX = this._x;
startY = this._y;
startDrag(this,true);

//scale image to a smaller size
this._xscale = 41.3;
this._yscale = 38.9;
}

on (release, releaseOutside) {
stopDrag();

if (getProperty(this,_droptarget) eq "/matching_mc/boxLion_mc") {
trace("Lion sound");
} else {
trace("Baby crying");
}
}