The situation at Omaha Beach was so bad _______ the soldiers succeeded in landing on the beach with a lot of people losing their lives.

 — I drove to Zhuhai for the air show last week.— Is that ____________ you had a few days off?

--Della likes dancing, but doesn't like swimming.. ----_____.

Not until I began to work ____ how much time I had wasted.

________ the problem of land erosion(侵蚀) getting more serious, the government is searching for a way to deal with it.