(单选题)35: After Billy proved that he could ride a bicycle safely, his father ___ to him and bought him one. A: give off B: give in C: give out D: give back ...

(单选题)17: The story he is telling is so ________ that some of the listeners begin to ask him to stop. A: pleasant B: horrible C: healthy D: exciting ...

(单选题)45: Because the sports building was full, hundreds of people had to ____ from it. A: turned away B: turned up C: turned in D: turned out ...

(单选题)33: They lit a fire to keep wild animals ___ the grounds. A: at B: on C: from D: off ...

(单选题)21: I’ll trade you five comic books ____ your knife. A: to B: with C: in D: for ...

(单选题)15: I was quite taken ____ by his attitude. I never expected he would disappoint his parents by doing such a thing. A: back B: aback C: after D: apart ...

(单选题)9: In discussing environmental pollution we ought to keep ____ the point of concern. A: to B: at C: on D: off ...

(单选题)47: Don’t bother running ____ the bus. You will never catch it. A: after B: about C: across D: over ...

(单选题)41: Only by combining our efforts ____ those of other people can we triumph over the difficulties we are now facing. A: into B: onto C: within D: with ...

(单选题)35: He was a good worker who was ________ to his family as well as to his work. A: consistent B: committed C: content D: engaged ...