A terrible terrorist attack at the train station in Kunming, on March 1, 2014 29 death and more than 140 injuries.
| A．occurred; caused | B．happened; caused |
| C．occurred; causing | D．happened; to cause |
The boy seated himself in the corner with his back to his father.
| A．turning | B．to turn | C．to be turned | D．turned |
--Were you late for the film?
--Very late. Half of it by the time we the cinema.
| A．was shown; reached | B．had been shown; reached |
| C．was shown; had reached | D．had been shown; lad reached |
Some solid evidence proves that water really exists on Mars, but unfortunately, there is still no of life.
| A．mark | B．sign | C．symbol | D．signal |
Bob a lot of Japanese when he watched Japanese cartoons at a younger age.
| A．picked up | B．took up | C．made up | D．turned up |