问题

Now many young people in China celebrate Christmas Day ______ December 25th.
A:on
B:in
C:at
D:to;
B:in
C:at
D:to;
正确答案是:
同类题型
He hurried to the school only _______ thecampus was empty ___ it was Sunday!
He pointed ___ the boy and shouted “You are a bad boy!”
While _________the topic of music in class, all the students show great interest in it.
She felt sorry that she had disturbed the ________ calmness of a man she respected.[ ]