The best way to get a serious point ____ withoutcausing offense is ____ humour

Five passengers were _____ in the traffic accident and they have all been taken to the nearest hospital.

Experiments of this kind ___in both the U．S and Europe well before the Second World War

The book is on Lily’s desk. _______it is hers. — No, it _______ Lucy.

The number of students in Class Ten____ sixty-six, and a large number of them ____Jay Chou.