1. LondonHas Fallen is ___________ exciting film , I think.
A. a B. an C. the D. 不填
2. --- Excuse me, is there a flower shop nearby?
--- I know ___________. I will take you there.
A. one B. it C. some D. that
3. --- Do you know anything about Chinese knots?
--- Yes. They are usually regarded ____________ symbols of good luck.
A. for B. by C. with D. as