Aqui está o meu layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/etTweetReview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="10dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:ems="10"
        android:hint="Discuss up to 140 characters"
        android:imeOptions="actionDone"
        android:inputType="textCapSentences"
        android:lines="2"
        android:maxLength="140"
        android:paddingBottom="10dp"
        android:singleLine="false" />

    <Button
        android:id="@+id/theReviewBarButton"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="5dp"
        android:text="Submit Review"
        android:textSize="22sp" />

    <Spinner
        android:id="@+id/spinnerSort"
        android:layout_width="120dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp" />

    <ListView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/android:list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="5dp"
        android:scrollbars="none"
        android:layout_marginRight="5dp"
        android:layout_marginTop="8dp" >
    </ListView>

</LinearLayout>

Quando a caixa EditText chegar ao final, eu quero que ela seja encerrada na próxima linha. No momento, ele apenas continua movendo tudo o que ficou fora da tela.