If prices rise too high, the government has to do something ______ it.

I was born ______ a Friday morning. [ ]

_____ do the students do after-school activities every day ? For more than one hour.[ ]

It is the first time I ____ to visit the Great Wall.

Hi, Tim. Huozun’s song Juanzhulian (卷珠帘) ______ great!—Yeah, I like it very much, too．