I saw him crossing the street. The sentence structure is _______.
—The most beautiful teacher Zhanglili ________ a mother to her students. —Yes, she is really a good teacher.
—_________ do you want to join the music club? —Because I want to learn from others about music.
—Mom, can I watch TV? —Yes, but you must do your homework _________ you can watch it.
Becky is ________telling stories. So he wants to join the story telling club.
—Is Rick often late for work? —Never. He always _________ on time.