一到北京,我们就被送到了姥姥家（on arriving）
On arriving, we were sent to my grandparents' home.

这把椅子是木制的.（be made of）
This chair is made of wood.

这座桥与众不同.它是蓝色的.（different from）
This bridge is different from others. It is blue.

熊猫是世界上最可爱的动物之一.（形容词最高级）
Pandas are one of the mostfavourite animals.

我们共计20人.（in all）
We are 20 persons in all.