What does the author mainly discuss in the passage?
Why do some experts believe cheap oil will stimulate the global economy?
What happens in many oil-exporting countries when oil prices go down?
How does Carl Weinberg view the current oil price plunge?
Why haven’t falling oil prices boosted the global economy as they did before?
We can learn from the passage that E-med service provides medical advice _____.
If E-med service is unable to find out your problems, you will be .
If necessary, the E-med doctor will ask you to .
The E-med doctors will refer the patients to a hospital in London if .
Which of the following can be used as a title of the passage?
All of the following facts are advantages of classified advertisement for advertisers EXCEPT that ____.
One of the examples given of types of classified advertisement is ____
What sort of attitude do people have when they look at classified advertisement, according to the writer?
According to the passage, in which way have the classified advertisements changed nowadays?
Why have classified advertisements changed in appearance?
