Bootstrap-when i am shortning the screen,my labels are lil-bit sticky with others input field?how to rid of it?

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">

<style>
    .img-responsive{
        margin: 5px auto;
    }
    .form-group1{
        border:3px solid #43525a;

    }
    .form-group{
        padding-top:5px;
        margin-bottom:5px;
        padding-right:3px;
        padding-left:3px;
    }
    .col-lg-2 , .col-sm-2{
        text-align:center;
    }

</style>

<header>
        <div class="container">
            <img class="img-responsive" src="img/head.gif" alt="Chania" width="460" height="345">
            <h1 style="text-align:center;">Business Use Of Motor Vehicle Worksheet</h1>
        </div> 
</header>
<hr>    

<div class="container">

    <form class="form-horizontal col-md-12" method="post" action="" role="form">

        <div class="form-group1">

            <div class="form-group">
                <label for="clientName" class="col-lg-2 col-sm-2 control-label">Client Name</label>
                <div class="col-lg-10 col-sm-10 ">
                    <input type="text" class="form-control" id="clientName">
                </div>
            </div>

            <div class="form-group">
                <label for="BusinessName" class="col-lg-2 col-sm-2 control-label">Business Name</label>
                <div class="col-lg-10 col-sm-10 ">
                    <input type="text" class="form-control" id="BusinessName">
                </div>
            </div>

            <div class="form-group">
                <label for="MakeOfVehicle" class="col-lg-2 col-sm-2 control-label">Make Of Vehicle</label>
                <div class="col-lg-10 col-sm-10 ">
                    <input type="text" class="form-control" id="MakeOfVehicle">
                </div>
            </div>

            <div class="form-group">
                <label for="Model" class="col-lg-2 col-sm-2 control-label">Model</label>
                <div class="col-lg-10 col-sm-10 ">
                    <input type="text" class="form-control" id="Model">
                </div>
            </div>

            <div class="row-fluid">
                <div class="form-group">

                    <label for="AcquisitionDate" class="col-lg-2 col-sm-2 control-label">Acquisition Date</label>
                    <div class="col-lg-4 col-sm-4 ">
                        <input type="text" class="form-control" id="Acquisition Date" placeholder="mm/dd/yy">
                    </div>

                    <div class="col-xs1">
                        <label for="PurchasePrice" class="col-lg-2 col-sm-2 control-label ">Purchase Price</label>
                    </div>  
                        <div class="col-lg-4 col-sm-4 ">
                            <input type="text" class="form-control" id="PurchasePrice">
                        </div>
                </div>
            </div>  
            <div class="form-group">

                <label for="DisposalDate" class="col-lg-2 col-sm-2 control-label">Disposal Date</label>
                <div class="col-lg-4  col-sm-4 ">
                    <input type="text" class="form-control" id="DisposalDate" placeholder="mm/dd/yy">
                </div>

                <label for="Proceeds" class="col-lg-2 col-sm-2 control-label">Proceeds</label>
                <div class="col-lg-4 col-sm-4 ">
                    <input type="text" class="form-control" id="Proceeds">
                </div>

            </div>

            <div class="form-group">

                <label for="TotalKM" class="col-lg-2 col-sm-2 control-label">Total KM driven in the year</label>
                <div class="col-lg-4 col-sm-4">
                    <input type="text" class="form-control" id="TotalKM" placeholder="in k.m.">
                </div>

                <label for="TotalKmDriven" class="col-lg-2 col-sm-2 control-label">Total KM driven for business</label>
                <div class="col-lg-4 col-sm-4 ">
                    <input type="text" class="form-control" id="TotalKmDriven">
                </div>

            </div>

        </div>
    </form>
</div>

<footer>
    <div class="container">

    </div> <!-- end container -->
</footer>

<!-- Latest compiled and minified JavaScript -->
<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>