75．_____________ 76．_____________ 77．___________ 78．______________
71．_____________ 72．_____________ 73．___________ 74．______________
85．October ,1st ,2009 will be our motherland’s s___________ birthday．
84． It’s too t________ to finish the 100-kilometre trail within 48 hours．
83． She speaks e___________ French．
82． If you try your b__________ to learn English, you’ll be better at it．
81． I hear they are both going on a trip． So I hope they’ll enjoy t___________．
80． They met a storm with t__________ and lighting on their way to school．
79． My father has b________ to the USA twice．
78． Most people like wearing clothes m________ of cotton．