18．- we do the experiment from morning till night，Mr．White？
-No，you ．You may have a rest if you feel tired．（ ）
-No，you ．You may have a rest if you feel tired．（ ）
| A． | Need，needn't | B． | Must，mustn't | ||
| C． | Must，don't have to | D． | Need，mustn't |
17．The volunteers gave away some toys to the sick kids to ___________ last weekend．（ ）
| A． | cheer them up | B． | pick them up | C． | woke them up | D． | give them up |
16．If you wants to learn about the writer，you can ________ more information in the magazine．（ ）
| A． | look forward to | B． | look up | C． | look after | D． | look like |
15．The Smiths ________about 2，000pounds for the new house with a big nice garden last year．（ ）
| A． | took | B． | paid | C． | cost | D． | spent |
13．
If your birthday is coming，what presents will your parents buy for you？It's not （71）I for Chinese parents to choose a birthday present for their children．Many American parents also have the same problem．But （72）H they have got American girl-an American company．It is famous for its beautiful dolls．Though there are many famous dolls in the world．American girl dolls are becoming one of the most popular birthday（73）D for girls．
What makes American girl dolls so popular among girls？The（74）L is in her matching （相配的） hair，skin，eye color，clothing and so on．That is to say，there are （75）K kinds of dolls for buyers to choose and the dolls look （76）J their owners．The company hopes their dolls can make girls （77）E that it is OK to be different from others．
The company gives each American girl doll her own name and special background．They also invite writers to （78）B books about her．The stories in the books are mainly about different periods of American history．So （79）C the girls are playing with their dolls，they can get a lot of fun and they can learn （80）A about history，too．
| A．something B．write C．when D．gifts E．understand F．member G．birthday H．luckily I．easy J．like K．different L．secret |
What makes American girl dolls so popular among girls？The（74）L is in her matching （相配的） hair，skin，eye color，clothing and so on．That is to say，there are （75）K kinds of dolls for buyers to choose and the dolls look （76）J their owners．The company hopes their dolls can make girls （77）E that it is OK to be different from others．
The company gives each American girl doll her own name and special background．They also invite writers to （78）B books about her．The stories in the books are mainly about different periods of American history．So （79）C the girls are playing with their dolls，they can get a lot of fun and they can learn （80）A about history，too．
10．Tom usually goes fishing _______ Sunday morning．（ ）
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| A． | at | B． | on | C． | in | D． | for |