20.（填空题）The firm is in a ______ （potential）dangeroussituation.

108.（单选题）She felt a great ______ to talk about his problems.

107.（单选题）I’m well ______ very few jobs are available.

106.（单选题）—Doesn’t Mr.Smith live on that street?—No.This is ______ Mr.Brown lives.

105.（单选题）He often asked me the question______ the answer was wrong.

104.（单选题）The reason he quit the job is ______ he hadn’t got promoted for 5 years.

103.（单选题）I had no idea ______ he became rich from a coal business.

102.（单选题）Is unemployment causally related ______ crime?

101.（单选题）Nursing is a very ______ career.

100.（单选题）Actually, I’m most grateful to you for your help.

99.（单选题）A large percentage of e-commerce business went bankrupt in 2000, mostly due to inadequate business plans and excessive spending on advertising and marketing.