Using drugs,or
"doping" as it is called in sport, is one of the main problems
_____(face) the Olympics.为什么是现在分词作定语呀,face 和problem不是动宾关系吗,是因为表示正在进行的时态吗,正面临的问题?
...理解C题的短文第三段文字是这样的:Corey Lambeth, a shepherd on a farm, told RNZ the machines
are surprisingly effective. “That's the one thing I've noticed when you're
moving cows that the old cows stand up to the dogs, but with the drones,
they've never done that,” he said, notin...