請依下文回答第 6 題至第 10 題
        A big hole in the car park at SpaceX’s headquarters in Los Angeles is the first visible evidence of another of Elon Musk’s ventures. Mr. Musk who, besides leading SpaceX, a rocket company, also __6__     Tesla, a maker of electric cars, is going into the tunneling business. The goal of the Boring Company, as he dubs his new enterprise, is to __7__ into tunnels faster and more cheaply than is possible at the moment.  __8__ the pit in the car park, Mr. Musk says he has also begun a series of test tunnels for a project that will, if it comes to __9__ , carry cars under Los Angeles on high-speed sledges. In this way, people can __10__ the dreadful traffic jams above. More ambitiously, he claims to have official support for a 320 km (200-mile) tunnel that would, in half an hour, whisk peopole between New York and Washington, DC, in magnetically propelled capsules, using a technology he has dubbed the hyperloop.
【題組】6
(A) ran
(B) run
(C) runs
(D) running