—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.

       hard she tried, she couldn't control her feelings when she was told her baby had been found．

 She spent ________ much time playing Majiang that she didn’t get enough sleep . 

You’d better give the task to _____ can finish it ahead of time.

These workers preferred to work extra hours at night_________leave the work until the next week.