________ there, the southwest desert contains a remarkable variety of plants.
It is reported that some mainland visitors to Hong Kong Disneyland didn't _______ the park rules and behaved improperly.
7.Peter was so excited he received an invitation from his friend to visit Chongqing.
8.----I’ve got to go now. ---Must you? I you could stay for dinner with us.
The main cause of HIV / AIDS infection in China is drug abuse, ______ is very serious in Yunnan.
9.With the world changing fast, we have something new with all by ourselves every day.