(C)1.Ann is eight-year-old girl with long black hair. A./ B.a C.an D.the (D)2.—Could you please offer me some on my research? —Yes,sure. A.idea B.message C.suggestion D.advice (C)3.Your classroom is so dirty.Everyone should keep it . A.dry B.open C.clean D.quiet (B)4.You mustn’t go off on your own,because you get lost in the mountains. A.should B.might C.need D.must (D)5. he thinks of the happy thing,he smiles. A.Whatever B.Wherever C.However &nb