Though tigers are ______ to people, they are ______ now and we should protect them or they will die out.
A．dangerous ; dangerous B．in danger ; in danger
C．dangerous ; in danger D．in danger ; dangerous
Some passengers were ______ in the traffic accident and taken to the nearest hospital.
A．injured B．damaged C．destroyed D．harmed
It was along the Mississippi River _____ Mark Twain spent much of his childhood.
A．how B．which C．that D．where
The house they are living now is ______ our house.
A．twice the size as B．the size twice of
C．twice as the size of D．twice the size of
Milu deer，which used to be ______ in China long ago，is a rare animal nowadays.
A．ordinary B．common C．popular D．usual
By the time I arrived at the airport, she_____ for New Zealand.
A. would be leaving B has left C will have left D had left
