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Can you guess the possible relationship of the two speakers?

每个图层都具有线型、（）和（）等属性。

Directions:There are 15 incomplete statements here. Fill in each blank with the proper form of the words given in the brackets.1. Your audience will be ___ (attract) by their interest in the subject and by your enthusiasm for it.2. Your topic should be appropriate for the _ (long) of the presentation.3. Practice your speech aloud several times until you can _ (confident) and comfortably transmit your message,4. Look directly at your audience when _ (start) your oral presentation.5. It is also important to _ (select) a topic that is geared toward the right audience.6.Your daughter is (luck)enough to have large company.7.After an (introduce)by the chairperson，we'1l go on with the day's discussion.8. We must keep the manager (inform)_____of the advertising campaign.9. lt is suggested that the president of the Union (make)_a speech on behalf of all the workers.10.Having been badly damaged by the earthquake,the city has to be (rebuild) .11.She described the ancient city in detail because she (live)____therefor years.12.The new university graduate is confident of (win)the post as theassistant to the managing director.13.Successful companies concentrate(much)_on selling their productsto their existing customers than to their new ones.14.The local economy depends (heavy)__on the goods.15.With such a short time (leave), it’s impossible for US to finish this complicated experiment.

Vocabulary & StructureDirections:In this section, there are 10 incomplete statements. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A, B, C and D.Keep the speech brief, even if that _______ leaving out a joke or funny story.

A. means
B. meaning
C. meant
D. to mean