she is going to Tibet in December划线部分提问（in December）

she is going to Tibet in December划线部分提问（in December） she is going to Tibet in December对划线部分提问（in December） she is going to Tibet in December对划线部分提问（画线的：in December ） ( she is going to Tibet in December对划线部分提问( in December ) ( ) Her birthday is in December.(对划线部分提问)(划线的是in December) 对划线部分提问.She is going to buy an English book in the bookstore Christmas day is on December 25th对划线部分提问 (on December 25th)这 His birthday is on December 21st.（对划线部分提问） christmas is on the 25th of December.(对划线部分提问） She is in Americe.(对划线部分提问）------- ------- she? They are going to China in December什么意思 Is her birthday in December?