是has还是have?A lot of advice has/ have been offered by people?

是has还是have?A lot of advice has/ have been offered by people? people who是has been还是have been times 是has还是have changed a lot i have a lot of friends ,but none of _ has ever been abroad. have been offered a large ( ) of money Describe a place that you have been to that has a lot of wat 是"there has changed a lot"还是"there have changed a lot"?”为什么 是"there has changed a lot"还是"there have changed a lot"? I have been meeting a lot of people that way one of these books ____ been returned 是has还是have! 求教I have been offered a sum of money He often has a lot of meat every day,but l have a lot of veg