1. I had just lost $50 and I felt very upset.
    我刚刚丢了50英镑，感到非常烦恼。

2. I promised I wouldn't tell them. What should I do? His grades are very low. If he fails, my parents will be so upset."
    我答应他不告诉父母。我该怎么办？他的分数很低，要是这门课不及格，我父母就会非常不安。"