Ifhe____ontouristsforhisbusiness,hewouldhavetoclosehisshop.
A、depends
B、willdepend
C、depended
D、haddepended
It is imperative that you ____ here in time.
A、shallarive
B、mustarrive
C、couldarrive
D、arrive
Heborrowedabooktheotherday，theauthor____isaworker.
Hisparentswouldn'tlethimmarryanyone____familywaspoor.
A、ofwhom
B、whom
C、ofwhose
D、whose
Nora: How long has this bookshop been in business?
Michel: ______1982.
A、After
B、In
C、From
D、Since