以下是英语选择题(并且说出理由)

问题描述:

以下是英语选择题(并且说出理由)
17.I don’t like blue _________ she likes.
A.but B.and C.so D.or
19.The pencil case is only 5 dollars.I'll __________.
A.take it B.bring it
C.bring them D.take them
28.We have math _________ Friday.It’s difficult _________ interesting.
A.on,or B.on,but C.in,or D.in,and

A (前面不喜欢,后面喜欢,所以表示转折)
A (买下)
B(在星期几用介词on,前后两个形容词一个褒义词,一个贬义词,所以表示转折)