阅读理解。
Big Sale-This Week Only

Things	Last week	This week	Next week
Pencils	10 cents	5 cents	15 cents
Ball pens	79 cents	50 cents	1.19 dollars
Exercise books	89 cents	60 cents	1.25 dollars
Letter paper (100 sheets)	2.59 dollars	2.00 dollar	2.99 dollars
All textbooks	15.00 dollars	30% off (降价30%)	17.50 dollars
T-shirts	4.99 dollars	3.50 dollars	6.00 dollars
Jackets	22.50 dollars	18.00 dollars	25.99 dollars

1. How much were 200 sheets of letter paper last week?

A. 2.59 dollars.
B. 5.18 dollars.
C. 4.00 dollars.
D. 5.98 dollars.
2. How much is a textbook this week?

A. 10.50 dollars.
B. 4.50 dollars.
C. 13.00 dollars.
D. 10.00 dollars.
3. How much will you spend on three exercise books next week?

A. 1.80 dollars.
B. 2.67 dollars.
C. 3.75 dollars.
D. 3.25 dollars.
4. If I buy a T-shirt this week, how much money can I save than last week?

A. 2.50 dollars.
B. 1.01 dollars.
C. 0.49 dollars.
D. 1.49 dollars.
5. If I bought a jacket, a textbook and an exercise book last week, how much can I spend?

A. 38.39 dollars.
B. 41.54 dollars.
C. 30.10 dollars.
D. 44.28 dollars.

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