1.This watch is _______ by hand, not by machine, so it is very expensive.

ctured

2.These two horses look so much alike that we can not _______ one from the other.

guish

3.The president of that company was very calm during the political _______.

e

n

d

4._______ is usually the chief enemy of the camera lens.

A.Oxxasion

C.Moisture

D.Deck

5.The _______ left the ship after sixty hours of hard struggle.

6.On our way to Beijing, we visited Xi’an, a city of two million _______, and stayed there for two days.

A. insects

tants

s

7.One of the main reasons for air pollution is that many cars _______ smoke into the atmosphere.

rge

8.Don’t forget to _______ to let us know you arrived safely.

9.She gave him a _______ that she could not come to his party.

ss

10.When the temperature is below zero, water will _______.