----Where is Sandy? ----He ______to anwer the phone. He’ll be back in a minute.
Last summer we visited the West Lake, ______Hangzhou is famous in the world.
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.