—I will buy you a mountain bicycle as a reward if you pass the college entrance examination.—______.
—The lights were left on all night long.—Oh. It seems that Tom is ____. Only he stayed in the classroom when I left yesterday evening.
The ________, I think, he drew from his simple experiment is not scientific.
They fell in love with each other _______ they met in Paris.
________ of experience made John fail in the interview,but it didn't mean that he couldn't find a suitable job.
Helen always helps her mother even though going to school ________ most of her day.