( )What’s __________ your classroom?
A. in B. on C. is
（ ）We must pay attention _______the traffic lights.
A. at B. to C. in
（ ）We must ______ and wait at a red light.
A. stopping B. stops C. stop
（）_______ the No.51 bus over there.
A. TakeB. TakingC. Takes
选择合适的一项，补全单词。
（）（1）h lmt A.e，aB.I，aC.e，e
（）（2） tentio A.a，e B.a,y C.a，n
（）（3）w rA.eeB.eaC.ie
（）（4）tr f c A.a,iB.a,e C.i,n
（）（5）c_ _ sin A.oeB.ouC.on
( ) My stomach ________.
A. hurt B.hurts C. hurted