--I am so happy that John now enjoys big parties.
---Really? He used to in front of strangers.
A. to host; be shy
B. hosting; being shy
C. hosting; be shy
D. to host; being shy
网友回答
A. to host; be shy
B. hosting; being shy
(答案→)C. hosting; be shy
D. to host; being shy
解析：考查动词搭配：第一空是enjoy后面接动名词，第二空是used to do过去常常做…，句意：--我很高兴约翰现在喜欢主持大型聚会。--真的吗？他过去在陌生人面前会害羞。选C。