[填空题]He spent 20 dollars on the shirt．
The shirt ______ him 20 dollars．

[填空题]He spent 20 dollars on the shirt． The shirt ______ him 20 dollars．

[单项选择]He ______ fifty dollars for the shirt.
A. spent B. cost C. paid

[单项选择]Jack contributed fifty dollars, but he wishes he could contribute______.
A. one other fifty dollars
B. the same amount also
C. another fifty
D. more fifty dollars

[单项选择]

Millions of dollars are spent every year in fighting tooth decay. Despite better education and a higher standard of living, the number of people needing dental treatment increases every year. A British dentist, Mr. R.V. Tait, has thought about why this is the case, and has made some suggestions about what could be done to improve the situation.
He has pointed out that our thirty-two teeth evolved in the past to deal with a much tougher diet than we have now. Our ancestors ate tough gritty food, and so they needed many teeth. Our teeth, however, do not have to cope with such a diet, because we eat much softer food. Unless, therefore, we are prepared to eat the diet of our ancestors, we should get rid of some of our teeth. Instead of thirty-two teeth, it would be better if we had a well-spaced set of twenty to twenty-four. This would force the rest to work harder and make them more healthy.
Another advantage would be that with larger spaces between our teeth, caries
A. Spend more money in fighting tooth decay.
B. Have better education.
C. Improve people’s standard of living.
D. Get rid of some of our teeth.

[填空题]She spent twenty dollars on the dictionary. The dictionary ______ her twenty dollars.

[填空题]She spent twenty dollars on the dictionary.
The dictionary ______ her twenty dollars.

[简答题]She spent twenty dollars on the dictionary. The dictionary ______ her twenty dollars.

[填空题]Bob spent fifteen dollars on the bag. The bag ______ him fifteen dollars.

[填空题]She spent twenty dollars on the dictionary.
The dictionary ________ her twenty dollars.