He teaches ______ English there.

There are always ____interesting stories in the series that ___ many people watch them.

20 My business brings _____ such a big sum of 200,000 yuan for “the Hope Project”

Lessons can be learned to face the future, ________ history cannot be changed.

We are lucky to be among the generation ofpeople who have ________ and experienced the great social changes in ourcountry.