Trees on the hills can stop the rains from away the soil.
_____ many times, she still didn't know how to do it.
_____ many times, but she still didn't know how to do it.
Scientists think that the continents today _______ always where they _______.
Scientists think that the continents _______ always where they ___today.
--- Would you tell me ______ you want your tea with sugar or milk? --- Sugar, please.