It is advisable that you should insure all your property against loss by theft or fire when traveling abroad as a tourist.

A. The location and size of the building.
B. The type and content of the building.
C. The height and structure of the building.
D. The medical information of the firefighters.

A. twins understand each other very well
B. twins are slow to learn to talk
C. twins are unlikely to do less well at school than other children
D. there exists more communication between twins