4.The crack in the wings of the plane that crashed was caused by metal ____.(A)somehow (B)fatigue (C
5.Remember to take all your ____ with you before you are ready to get off a plane.(A)flames (B)night
6.An excessive number of tourists may ____ the local environment, which can destroy the ecological b
7.The authorities concerned must take this issue seriously and make ____ to ensure sustainable devel
8.The government must take steps to protect people from the____of secondhand smoke by banning smokin
2. According to Mr. Garcia’s medical ________, he suffered from liver cancer two years ago.(A) brick
3. Dennis waved his arms up and down, ______ he was flying like a bird.(A) heeding(B)pretending(C)st
5. Whenever Lucy gets nervous, she feels a sharp_____ in her stomach.(A)loss(B)pain(C)disease(D)gove
6. The lottery winner donated one million dollars to the_____, hoping to help those in need.(A)choru