The factory was built in a secret place, around _________ high mountains.
---It looks heavy. Can I give you a hand?---_______.
— Foreign trade has been developing very fast in Guangdong.— Yes. Guangdong is China’s largest province ___ foreign trade volume.
Last Sunday, I went shopping for the perfect dress, ______ would make me look younger.
In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.
They will fly to Washington,they plan to stay for two or three days.