单项选择题
A．In the Arabain Gulf. B．In Iran. C．In Iraq. D．In Kuwait.
A．most of the world's oil supplies. B．2/3 of the world's oil supplies. C．1/3 of the world's oil supplies. D．1/4 of the world's oil supplies.
A．In the end of the ninetieth century. B．In the early twentieth century. C．In the early nineteenth century. D．At the end of ninetieth century.