Some Chinese students find it difficult to understand native speakers when in London.— Exactly, _______they’ve learned a lot about grammar and known many words.

They went the forest from west to east.

It was surprising that your brother should have________my sister the moment he saw her yesterday. —Yes, especially since it had been 30 years since they last saw each other.

We may never discover what _____ that night when you left for Beijing.[ ]

The mother ________ her son’s success in the newspaper.