Gunpowder,__________ we all know, was invented in ancient China.
If a shop has chairs __________ women can park their men, women will spend more time in the shop.
Helen was much kinder to her youngest son than to the others, __________, of course, made the others envy him.
The English play __________ my students acted at the New Year’s party was a great success.
Only when your identity has been checked__________.
No sooner____ on my comfortable bed______ my telephone rang.