英语填空,完成对话A：What are your parents going to do this evening?B：They are going to see a Beijing opera at the ( ).A: ( ) they often see it?B: Yes,( ) week,

英语填空,完成对话
A：What are your parents going to do this evening?
B：They are going to see a Beijing opera at the ( ).
A: ( ) they often see it?
B: Yes,( ) week,

theater
do
every

moment /Do /once a

cinema
do
every