单元：List-20.txt

• either
• glance
• arrange
• ahead
• whole
• frighten
• insist
• coast
• judge
• background
• hamburger
• terrify
• scene
• modest
• sometimes
• conduct
• schedule
• hit
• progress
• proper
• dictation
• percent
• stamp
• design
• operate
• lively
• blank
• participate
• file
• wound
• skill
• apology
• frequent
• cautious
• wonderful
• create
• practice
• coach