It was not yet midnight _____ a stranger asked for a ferry service and promised an extra fare.a. while b. until c. when d. that
—I hear some noise in the next room.—Oh, yes. Your sister_______ there.
All the students__________ to plant trees and there’s nobody in the classroom.
Stop! A little boy_________ the street.
The girl________ to milk since last winter.
What__________ to you this morning?