Please be ________ .There’s an important meeting inthe next room.

It ________ me that I could buy the admission ticket of the exhibition at the discount of 50% with my student card, ________ made me extremely excited

Aren’t Sam and Helen in Class Three —_______.

The weather in Beijing is ______ than ______ inNanjing.

All __________ people on the earth should use the natural resources wisely, or they __________ by the nature sooner or later.