As is recorded in history, silkworms (蚕) were first raised by a woman in _________ is today Hebei Province.
Walking on the street,___________.
When you study the local map, you'll find this town is ________.
Passengers are permitted to _________ only one piece of hand luggage onto the plane.
You can’t rely________ him to pick you up. He is still a green hand.
It was with great joy_________ he received the news that his lost daughter had been found.