Barack Obama, who came into _________ power on January 20, 2009, was awarded _________2009 Nobel Peace Prize.
| A．the; the | B．the; / | C．/; the | D．/; / |
According to a study carried out by an American university, when you eat has ______ on your mood as ______ you eat.
| A．much of as an effect; what | B．much of as an effect; which |
| C．as much of an effect; what | D．as much of an effect; which |
The first decade of the 21st century ______ breathtaking, non-stop development in China.
| A．witnesses | B．witnessed | C．will witness | D．had witnessed |
The real-name policy for train tickets has been applied to all trains since January 1,2012 in China, ______ I think will make it easy for people to get tickets.
| A．which | B．when | C．what | D．where |
His letter was so confusing that I could hardly make any ______ of it.
| A．explanation | B．meaning | C．sense | D．guess |
Today the canal is still being used. Ships can be seen moving on ______ water now and then. But it is no longer ______ busy water highway.
| A．a, the | B．the, / | C．/, a | D．the, a |