Both strip mining and quarrying______ exposure to the earth’s surface.A、maintain

游客2024-01-02 42

问题 Both strip mining and quarrying______ exposure to the earth’s surface.

选项 A、maintain
B、maintaining
C、maintains
D、is maintained

答案 A

解析 The compound subject both strip mining and quarrying needs a plural verb: maintain.

转载请注明原文地址:http://tihaiku.com/zcyy/3327796.html

相关试题推荐

随机试题

最新回复(0)

Because(oftheneed)tomaintainthecorrectbalanceofsalts(and)mineralsin