30．請根據(jù)短文內(nèi)容選擇一個最佳答案。?
Miss Jones teaches at a school.She teaches the boys and girls about nine years old.The pupils are not good at maths in one of her classes.Miss Jones always wants to make her lessons interesting.
One day she gave them a question."If you go to the shop to buy apples，"she said，"and an apple and a half cost twelve cents（美分），how much will you have to give for twelve apples？"
The pupils began to write in their exercise books，and for a long time nobody spoke.Then one boy put his hand up and said，"could you say the question once again，please？"Miss Jones said，"If an apple and a half…?"But the boy shouted，"oh，an apple and a half？All the time I am working it out（算出來）in oranges，Miss Jones.So the answer must be different."
（1）Miss Jones teaches
.
A.not well
B.middle school students
C.maths in one class
D.very good students?
（2）Miss Jones
.
A.wanted her pupils to buy apples
B.wanted to buy apples for children
C.wanted her pupils to be interested in the lesson
D.gave them a very difficult question
（3）The pupils began to work，
.
A.and soon they got the answer
B.and they did it very quickly
C.but only one worked it out quickly
D.but one was not clear about the question?
（4）Apples oranges are different things，
.
A.so the answer must be different
B.but the answer would be the same
C.so the pupils couldn't work it out
D.and the boy found Jones was wrong.?
（5）The boy was really
.
A.not clever
B.very quick
C.quite clever
D.careful?
