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．

77． Shanghai is so big that we can get lost ____________（容易地）in it．

76． Miss Lu is often __________ （邀请） to give us talks on teenagers’ education．

75． －Can you  ___________（描绘）the attacker to the police ? －He is tall and strong．

74． If we keep _________ （砍伐）down the trees, wild animals will have nowhere to live．