1. We didn't go to the meeting because we were very busy

-> We were too busy to go to the meeting.

2.No one in the class is taller than Ba

-> Ba is the tallest in the class.

3. He started to work for this non-profit organisation five years ago

->He has been working/has worked for this non-profit organisation for five years.

4. I don't intend to take part in the running competition this weekend

-> I have no intention of taking part in the running competition this weekend.

5. The film was so long that we missed our last bus

-> It was such a long film that we missed our last bus.

1, We were too  busy to go to the meeting.

2,Ba is the tallest in the class.

3,He has been working/has worked for this non-profit organisation for five years.

4,I have no intention of taking part in the running competition this weekend.

5,It was such a long film that we missed our last bus.