1.It is reported that a bus went out of ________ control on a highway ________ south of the city last night.
A./; / B./; the C.the; / D.the; the
2.—Where have you been recently?
—I ________ in Beijing on business for a week last month.
A.have worked B.was working
C.have been working D.worked
3.—Has Sam finished his homework today, Anne?
—I have no idea. But he ________ it this morning.
A.did B.had done
C.was doing D.had done