Thestudent’s____wastowriteabookreport.
A.appointment
B.assignment
C.agreement
D.achievement
.Whenwasthehouse
A.build
B.hasbuilt
C.built
D.hasbeenbuilt
Hisfather____sincehelosthisjobthreemonthsago.
A.hadbeenunemployed
B.wasunemployed
C.hasbeenunemployed
D.hasunemployed