81.The work of engineer requires ______________(智力) plus experience.
82. _______ (下定决心) to finish our work ahead of schedule, we worked day and night.
83. The car is becoming a popular means of t ________ for more and more families nowadays.
84. Many of those ___________(企图，试图) to escape have been shot dead by border guards.
85. She is excellent in b ________，and she can always get cheap goods.
86. He finally founded his own advertising firm as well as a magazine for c_________ arts.
87. I do like cycling which is highly b________ to health and the environment.
88. My parents want me to be a businessman. P_________ speaking, I would like to be a teacher.
89. During his election ________(活动，运动), he promised to put the economy back on its feet.
90. With your efforts ________(增加， 增长), you are more likely to achieve your goal.