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.Oxxasion

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