东汉末年，关中地区人口从240万减少到50万，扬州从320万增加到433万，荆州（今湖北境内）从359万增加到620万．导致这一时期南北人口变化的主要因素是（　　）

美国前副总统华莱士说：“左宗棠是近百年史上世界伟大人物之一，他将中国人的勇武精神展现给俄罗斯人，给整个世界．”华莱士评述左宗棠的历史事件是（　　）

    There are many ways you can save money at the supermarket . Here are some of the best:

    Make a list and follow it.

    The list is about your needs: the notebooks you're out of and the food you need for daily meals. When you buy the things that are not on the list, you are wasting your money.

    Compare the prices.

    The biggest package isn't always the cheapest. Sometimes it is cheaper to buy in bulk*. So it's useful for you to compare the prices.

    Ditch the basket or cart.

    If you're going to the supermarket just to pick up milk and bread, don't use a basket. Baskets let people to buy more. Only use a basket or a shopping cart if it's really necessary.

    Make one large trip instead of several small ones.

    Each time you enter the supermarket, you get another chance to spend. By reducing the times of your trips, you're saving both time and money.

    Shop when you are full.

    If you go to the supermarket for milk on a Sunday morning without eating breakfast, you are likely to come home with bread, sandwiches and orange juice.

语法填空

    I have great news to report. Yesterday I ____ (give) a higher position in my company with ____ (high) pay . I ____ (work) for my company for a number of years, and things have gone quite ____ (good). First, I helped my department increase sales last year. Before that, we only earned 150,000 dollars a year.  We have advertised and promoted our products at trade shows , on TV and in the newspaper , ____ brings about a good result. Our company has become better ____ (know) not only in our area but also in other cities. Now, more and more ____ (customer) are learning about us ; When you have satisfied customers, the news gets around. Besides increased sales, I've established ____ good working relationship with my colleagues. We recognize each other's abilities and respect each other's opinion. All my co-workers believe I have the ability ____ (lead) the department in the right direction. Therefore, I accepted the promotion and the pay raise, and I'll do my best for my company and for my customers in the future. I'm sure that we ____ (have) a bright future.