发生火灾了,形势很紧急,你应该拨打:A.oneoneone B.oneonenine
These are Christmas lights _____ our house.
He isgood actress. A.a B.an C.\
He often ________a bus to work . A.takes B.take C.by
Stop ____________the traffic light. A.on B.at C.to
How do you go to school? ____________. A.walk B.on foot C.walk to