GWD-23-Q37

Until recently,
                        trade flows were of interest
            mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

1. since the past few years, the movement of goods and services across national boundaries have become

2. the movement of goods and services across national boundaries since the past few years became

3. the movement across national boundaries of goods and services over the past few years have become

4. over the past few years, the movement across national boundaries of goods and services are becoming

5. over the past few years, the movement of goods and services across national boundaries has become

Answer: E

请问，不考虑单复数，能选A吗？

还真没注意到。。谢谢！

“since”,和the past few years放在一起怪怪的，能这样用吗？

呵呵..你说的把握句子整体挺对的呀

........可是..这题选E....

噢~是的。。谢了！

ddingdang, 我知道单复数不对，从movement可以看出来；也觉得E挺对的。只是想确认一下since，哈~

in/over/during the past few years

固定搭配，一般用现在完成时。