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 |
----- Can you use chopsticks, John?
----- ________ . I once stayed in China for two years.
|
A.No problem |
B.It all depends |
|
C.I’m sorry, but yes |
D.You can forget it |
We can never expect bluer sky unless we create less polluted world.
|
A.a; a |
B.a; the |
C.the; a |
D.the; the |
Is it to hold the 2010 World Exhibition _______ makes Shanghai the focus of the world?
|
A.when |
B.that |
C.which |
D.what |
I like _____ in the spring when the weather is warm and everything begins to grow.
|
A.this |
B.that |
C.these |
D.it |
Many new means__________ to prevent the river ____________.
|
A.have found, from polluting |
|
B.have found, from being polluted |
|
C.have been found, from being polluted |
|
D.has been found, from being polluted |