单项选择题Studies show that if a working environment is pleasant,()will be higher.

A.productive
B.productivity
C.production
D.produce


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1.单项选择题People should take holidays, otherwise they will get()and leave the company

A.exhaust
B.exhausting
C.exhausted
D.exhaustion

2.单项选择题I still enjoyed the week()the weather.

A.although
B.despite
C.though
D.but

3.单项选择题At the moment our technology is more advanced than theirs, but they are()fast.

 A.catching up
B.catching on
C.catching at
D.catching out

4.单项选择题The machine comes with()useful accessories.

A.a whole amountof
B.a whole numberof
C.a whole hostof
D.a whole sumof

5.单项选择题His suggestion()more people to have jobs.

A.made
B.let
C.had
D.allowed

6.单项选择题()of the rooms has its own computer.

A.All
B.Every
C.Each
D.Whole

7.单项选择题This sign warns()ahead.

A.people the danger
B.people of the danger
C.people about the danger
D.the danger

8.单项选择题His visits gave his grandparents()

A.such pleasure
B.such a pleasure
C.such pleasures
D.a such pleasure

9.单项选择题I think what()me about his painting is the colours he uses.

A.appeal
B.appeal to
C.appeals
D.appeals to

10.单项选择题She usually wears casual().

A.dress
B.coat
C.clothes
D.cloth