1.This watch is ____ by hand, not by machine, so it is very expensive. A. flat B. coined C. bored D. manufactured 2.These two horses look so much alike that we can not ____ one from the other. A. differ B. detail C. distinguish D. defeat 3.The president of that company was very calm during the political ____. A. failure B. fashion C. proceed D. crisis 4.____ is usually the chief enemy of the camera lens. A. Occasion B. vain C. Moisture D. Deck 5.The ___ left the ship after sixty hours of hard struggle. A. dash B. cell C. crew D. gay 6.On our way to Beijing, we visited Xi’an, a city of two million ____, and stayed there for two days. A. insects B. human C. inhabitants D. flights 7.One of the main reasons for air pollution is that many cars ____ smoke into the atmosphere. A. gather B. hire C. discharge D. escape 8.Don’t forget to ____ to let us know you arrived safely. A. cable B. cage C. border D. bay 9.She gave him a ____ that she could not come to his party. A. mistress B. shoot C. neck D. hint 10.When the temperature is below zero, water will ____. A. freeze B. virtue C. sink D. seek