(单选题)3: The ___ in this stamp makes it less valuable. A: error B: mistake C: fault D: flaw ...

(单选题)22: If I don’t get a pay rise I’ll ___. A: stop B: quit C: pause D: quilt ...

(单选题)16: He has a natural ___ for painting. A: altititude B: gratitude C: aptitude D: attitude ...

(单选题)4: Circus tiger, although they have been tamed, can ___ attack their trainer. A: unexpectedly B: deliberately C: reluctantly D: subsequently ...

(单选题)23: We had met on a ___ occasion. A: before B: present C: previous D: pretentious ...

(单选题)17: So, once I had made a considered decision, I no longer ___ it. A: dwelt on B: dwelt in C: dwelt with D: dwelt at ...

(单选题)11: Man must stop ___ the earth’s atmosphere. A: polluting B: filling C: emitting D: wasting ...

(单选题)5: The sounds of music grow ___ in the distance. A: faint B: fade C: wane D: ebb ...

(单选题)19: It was essential that the application forms ___ back before the deadline. A: must be sent B: would be sent C: be sent D: were sent ...

(单选题)13: He seems too ___ to do the heavy work. A: old B: ancient C: few D: little ...