单项选择题A．He can get 10 dollars at least.B．He can get 20 dollars at most.C．He can receive gills worth no more than 20 dollars.D．He is not allowed to receive any amount of cash or gifts.

单项选择题A．She could not understand any English.B．She could speak English very well except for some slang.C．She Could not understand some American slang.D．She did not like the life in America.