31.   The findings were published this week in the Proceedings of the National Academy of Sciences.

32.   The hostages are now entering their fourth week in captivity.

33.   The next meeting will be held in the last week in June.

34.   The Rocky Mountaineer will continue to make one round trip a week in summer from Vancouver to Calgary.

35.   The troubled defence and electronics group has spent the week in talks a clutch of potential bidders.

36.   The unions said that they were looking for the second week in January to begin an all-out stoppage.

37.   The weeks in the lab slid by without difficulty.

38.   They agreed to meet the following week in the Cafe Rouge.

39.   We keep practicing the same dance steps week in, week out.

40.   We managed to get away for a week in August.