Since the Obama administration took office, the China—US relations ________ positive development thanks to joint efforts of both sides, President Hu said at the Nuclear Security Summit in Washington, April,12,2010.
| A．witnessed | B．were witnessed | C．had witnessed | D．have witnessed |
相关试题
--- I' m surprised to hear that Sue and Paul have __ .
----So am I. They seemed very happy together when I last saw them.
A. broken up B. finished up C. divided up D closed up
Because of the financial crisis, days are gone _ _ local 5-star hotels charged 6,000 yuan for one night.
| A．if | B．when | C．which | D．since |
-- Ann is in hospital.
-- Oh, really? I __ know. I __ go and visit her.
| A．didn’t; am going to | B．don’t; would |
| C．don’t; will | D．didn't; will |
The population of Jiangsu __ to more than twice what it was in 1949. The figure is now approaching 74 million.
| A．has grown | B．have grown | C．grew | D．are growing |
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