选用正确的冠词填空。（1）Look! ____ little dog is under my desk.____ dog is my uncle’s.（2）Can you give me____ apple?（3）There is ____ “I” and ____ “T” in the word “it”.（4）____ girl in red is my sister.（5）____ moon turns around the earth(地球).
设集合A=x|x-a<2,B=x|2x-1x+2<1，若A⊆B，则a的取值范围是（ ）
