A.whose | B.which | C.where | D.that |
A.did China perform | B.China has performed |
C.was China performed | D.China is performing |
A.why | B.that | C.how | D.what |
A.where | B.that | C.on which | D.when |
A.that, that | B.what, what |
C.where, where | D.where, that |
A.of which | B.of whom | C.of them | D.of what |
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