问题补充:
The guests are looking forward every moment to to China again.
A. honor; visit
B. honored; pay a visit
C. honored; paying a visit
D. honoring; visiting
答案:
A. honor; visit
B. honored; pay a visit
(答案→)C. honored; paying a visit
D. honoring; visiting
解析:honored过去分词作定语,意思是“尊敬的”;look forward to中的to是介词,其后加动名词或名词。visit作动词时,其后直接跟宾语,作名词时,后面加to后再接宾语。