________ many countries in Latin America have been trying to reduce gaps in income, America has allowed inequality to grow.
| A．While | B．Since | C．If | D．Where |
___________for his expert advice, John is often asked to help others with their personal affairs.
| A．Having known | B．Being known | C．Known | D．Knowing |
．—Lend me some more money, will you?
— Sorry, I’ve got _______ at hand myself．You know the iPod player cost me all I had just now.
| A．no one | B．neither | C．none | D．nothing |
—May I see your ticket, please? I think you ________ in my seat.
—Oh, you’re right．My seat is upstairs．I’m terribly sorry.
| A．are sitting | B．sit | C．sat | D．have sat |
The flowers___________sweet in the garden attracted the visitors to the beauty of nature.
| A．smell | B．smelt | C．smelling | D．to be smelt |
—Was it there ______ you were away to see your friend off?
—I’m not sure．But when I got back, it was gone.
| A．that | B．which | C．while | D．where |