This year's sales in many companies we

1、How many years of

How many years of experience do you have installing， configuring， and/or administering Wind...

2、This is the problem（）we have no good s

This is the problem（）we have no good solution as yet.Ato thatBwhichCfor whichDto which

3、Each year in the United States, many b

Each year in the United States, many black teenagers（）of school, either because they cannot keep up or they have to work to support their family.Ago outBdrop outCcheck outDpull out

4、In many societies of the world， we fin

In many societies of the world， we find a large number of people who speak more than one language. As a characteristic of societies， b（） inevitably results from the coming into contact of people with different cultures and different languages.

5、For many years, people electric cars.

For many years, people electric cars. However, making them has been more difficult than predicted.Ahad dreamed ofBhave dreamed ofCdreamed ofDdream of

6、（） aeroplanes in this company are Boei

（） aeroplanes in this company are Boeing planes.AMost ofBMostCThe most