40. Water does not boil until it is heated to 100 ℃. =Water does not boil until______ to
100 ℃.
41. Because he was ill, he couldn’t attend the meeting. =______ ______ , he couldn’t attend the meeting.
42.你介意我在这里坐一会儿吗？
Would you ______ ______ ______ ______here for a while?
43.你应该避免犯同样的错误。
You should______ ______ the same mistake.
