—_______is this hairdryer ?— It’s my mother’s .A. Whose B. Who C. Who’s
( )The bus is _________ . A. coming B. come C. comes
()You must look right_________ you cross the road. A. before B. at C. on
( )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