B．Public Speaking Makes a Man Embarrassed.

C．Principal Provides the Best Chances.

D．Spoken English Develops in Malting Speeches.

29．The author had bad feelings before the speech because .

A．he disliked the idea of giving a lecture

B．he had got a high fever before that

C．he regretted accepting the invitation

D．he feared he couldn't perform it properly

30．What does the underlined part "ominous apprehensions" in the first paragraph mean?

A．Unlucky opportunities.

B．Negative ideas.

C．Curious views.

D．Happy comments.

31．What can we conclude from the passage?

A．Nothing is to be got without pains but poverty.

B．Knowledge makes humble, ignorance makes proud.

C．A journey of a thousand miles begins with a single step.

D．Necessity is the mother of invention.

D

Some problems are difficult to solve.But there are a lot of number expressions that can help.For example, if we put two and two together, we might come up with the right answer.We know that two heads are better than one.It is always better to work with another person to solve a problem.Some problems have only one solution.You cannot be of two minds over this.But with any luck, we can solve the problem in two shakes of a lamb's tail.In other words, we could have our answers quickly and easily.

Sometimes we can kill two birds with one stone.That is, we can complete two goals with only one effort or action.But we must remember that two wrongs don't make a right.If someone does something bad to you, you should not do the same to him.

If you are going out with your girlfriend, or boyfriend, but you don't want another friend to go along on your date, you can just say to your friend: two's company, three's a crowd.

When I was a young child in school, I had to learn the three R's.These important skills are reading, writing and arithmetic.These three words do not all start with