=Because (of) Helen ate too much food,she had a stomachache.
=Eating too much food,so Helen had a stomachache.
Because Helen ate too much food, she had a stomachache.
Helen ate too much food, so she had a stomachache.
Because Helen ate too much food, she had a stomachache. =Helen ate too much food, so she had a stomachache.
Because she ate too much food, so Helen had a stomachache .
Because Helen ate too much food, she had a stomachache.
Helen ate too much food, so she had a stomachache.
She ate too much food , so Helen had a stomachache.
Because Helen ate too much food,she had a stomachache.
Helenhad te too much food, so she had a stomachache.
Because Helen ate too much food, she had a stomachache,
Because Helen ate too much food, she had a stomachache.
Helen ate too much food, so she had a stomachache.
Helen had a stomachache because she ate too much food.
=Because Helen ate too much food