____ is your mother？ She’s a dancer.

　　A.a

　　B. an

　　C.

　　D. the

　　A. Hello

　　B.Sorry

　　C.Hi

　　D. Excuse me

　　A. look like

　　B.look in

　　C. look after

　　D. look in

　　A. by

　　B.in

　　C. at

　　D. with

　　A. Thank you

　　B. You are Welcome

　　C. Here you are

　　D. That’s ok

　　A. if       B. unless      C. for       D. since

　　A. such，that   B. so，that    C.such a， that    D. so a，that

　　A. While      B. As        C. As soon as        D. Where

　　A. laughed at        B. was laughed

　　C. laughed          D. was laughed at

　　A. Both， and      B. Neither， nor     C.Either，or     D.So，that