It is thought police had been called to the scene following a report of a collision involving her vehicle and ________ of another motorist.
A. one B. those C. some D. that
According to the new rules, if a student ________ happen to damage something in the campus, he/she should report it those concerned immediately.
A. should B. will C. shall D. would
Three days after the aircraft went missing, an international effort ________ ships and planes hasn't found any wreckage, ____ growing frustration for the families of the 239 people on board.
A. involved; causing B. to involve; caused
C. involving; causing D. involving; having caused
These remarkable findings suggest the elephants have ________ a memory capacity to make distinctions between human voices.
A. built up B. packed up C. brought up D. took up
People all think it strange that the boy should tell what’s written on the paper in another room without looking at it. It really ________ explanation.
A. prevents B. challenges C. interrupts D. confuses
It’s nearly four years since I worked in that firm. I ________ a band with other fellows.
A. operated B. had been operating
C. was operating D. am operating
