單項選擇題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.單項選擇題People should take holidays, otherwise they will get()and leave the company

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

2.單項選擇題I still enjoyed the week()the weather.

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

3.單項選擇題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.單項選擇題The machine comes with()useful accessories.

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

5.單項選擇題His suggestion()more people to have jobs.

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