(届四川省成都树德中学高三3月阶段性考试英语试卷)Since her only child passed away a few years ago, family has been a ________ topic for her.
The girl looked at me with a _______expression. Maybe the problem was quite ______.
Would you please ______ your statement again? I don’t understand what you were saying.
---How long has the United Nations ________? --- ______1945.
Dr. Black is a professor of chemistry. _______, he is a famous writer.
The new invention may __________a lot of changes in our daily life.