如何使用Bootstrap并排放置两个选项？

Question

我想在我的表单中并排放置两个选项.我正在使用Bootstrap 3,但我无法正确对齐它们.

这是我的HTML代码:

    <form role="form">
        <div class="form-group">
            <div class="input-group date" id="datetimepicker1">
                <input type="text" class="form-control"/>
                <span class="input-group-addon"><span class="fa fa-calendar"></span></span>
            </div>
        </div>
        <div class="form-group">
            <div class="input-group">
                <input type="text" class="form-control"/>
                <span class="input-group-addon"><span class="fa fa-calendar"></span></span>
            </div>
        </div>
        <div class="form-group">
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
            </select>
        </div>
        <div class="form-group">
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
            </select>
        </div>
        <button type="submit" class="btn btn-primary btn-block te" >Prices &amp; Availability</button>
    </form>

Answer 1

用这个

jsfiddle http://jsfiddle.net/harshdand/e0fc1ucq/

<div class="row">
    <div class="col-sm-6">
        <div class="form-group">
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
            </select>
        </div>
    </div>
    <div class="col-sm-6">
        <div class="form-group">
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
            </select>
        </div>
    </div>
</div>