is known to us all is that the old scientist, for life was hard in the past, still works very hard in his eighties.
John’s aim is to inform the viewers that cigarette advertising on TV is illegal, __________?
Sarah hopes to become a friend of _________ shares her interests.
--What is that building? --____________ the students have their dance classes.
When _________ by the reporter about his generous action, he said: “__________ others can always be joyful.”
When Rebecca came to, she did not know how long she __________ there.