Heshookhandswiththevisitors________astoconveyhisapology.
We_______ifyoucouldgiveuswhateverinformationyoucaninthisrespect.
In1995,anaverageof_______ofdomestictravelerswentonsightseeinginChina.
Scientistsdoubtwhetherit’s________toregulateone’sbiologicalclockbydrinking.
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