The little girl is walking along the beach, happy and joyful, ________ bending down to pick up a beautiful seashell

When he knew that he had passed the driving test, he smiled _______.

My physics teacher said that light______ faster than sound.

Remember this, John. ______ careful you are, ______ mistakes you will take.

How many students are there in the classroom—_____. I don’t know where they have gone.