. The glass doors have taken the place of the wooden ones at the entrance, ________ in the natural light during the day.
I lost a book, ______I can't remember now.
You're the only person ______I've ever met ______could do it.
.In our factory there are 2,000 workers, two thirds of ____are women.
The letter is from my sister, ______is working in Beijing.
—I‘d like a pen which _________ well. —Will this one _________?