【问】 Every precaution must be done to keep all medications and dangerous substances out ofa child' sreaeh. (TOEFL，79，5—8)

答案为A(应将be done改为be made)。但我认为be done也是正确的。因为do和make是可以互换的。例如：

I'll make the beds this morning，if you like. =I'll do the beds this morning，if you like.

【答】 do和make能够互换的情形是很罕见的。一般地说，do和make都有其固定搭配。只能逐个记忆。下面是一些常用的搭配：

do one's homework(做家庭作业)，do business with(与……做买卖)，do an experiment(做实验)，do harm(伤害)，do a favour(帮忙)，do damage to(损坏)，make a mistake(犯错误)，makea noise(弄出声)，make money(挣钱)，make an effort(做出努力)，make an offer(建议)，make asuggestioo(建议)，make advances(取得进展)，make appointment with(与……约会)，make de-cision(傲决定)，make haste(赶忙)，make a joke(开玩笑)，make progress(取得进步)，make atrip to (旅游)，make precaution(采取预防措施)，make contribution to(做贡献)，make apromise of(允诺，承诺)。

请做下面的英语试题：

1. “Who is going to____(a.make b. fix c.do d. set)the cooking tonight?”(TOE-FL 教程)

2. He wants____(a. that this job is done b.this job done c.that this job is made.d. this job made)as soon as possible. (Nelson，300B)

3. “Are you busy?”“Yes，I have to____(a.doing b. make c. do d. making)myhomework every night，”(TOEFL，72，1)

4. A soluble substance alkali reacts with acids to do salts. (TOEFL，84. 11)

5. Antibodies____(a. to be made b. making c. made d. are made)by small，roundcells called lymphocytes and plasma cells. (TOEFL，82.8)

6. The country's two most powerful leaders tried to take the journey a little easier bygoing on the road themselves. (TOEFL，79. 5—8)

7. The doing of cheese begins with the congulation of casein，the chief milk protein，(TOEFL，80.3)

8. Although Henry Ford built his first handmade car in 1896，he did no real progress in

developing the automobile until 1903. (TOEFL，82.1)

9. Prototypical oboes did a loud，harsh tone，but the modern oboe is appreciated for itssmooth and beautiful tone. (TOEFL，91.10)

10. The way of reasoning whereby people do conclusions by logical inference from given

premises is called the deductive method. (TOEFL，87.5)

11. The fundamental problem of a tax system is to do enough money to pay for the expe-nses of government. (TOEFL，87.5)