The glass doors have taken the place of the wooden ones at the entrance,_____ in the natural light during the day.
Such novelists as Tolstoy are widely read, of __works; full of great humanity, however, some are difficult to understand.
At the railway station,the mother waved goodbye to her son until the train was .
The door opens and there ____.
-Why are you still here? Everybody has gone to attend the lecture by the president.-Oh, I ____ about it!
All the photographs in this book, ____ stated otherwise, date from the 1950s.