—Do you have a big library?
A. as big as
B. as big than
C. as bigger than
D. bigger as
Suzhou is not _____ beautiful _____ Hangzhou.
A. as; than
B. so; as
C. even; than
D. /; than
Iron is more useful _____ any other metal.
A. as
B. than
C. then
D. so
I want to know _____ she is going to see a film.
A. if
B. that
C. what
D. which