Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Environmental              is a big problem in large cities nowadays.
A.pollution
B.dust
C.dirty
D.research

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The more challenging the job is, _______.
A.the more interesting he finds
B.the more he finds it interesting
C.he finds it more interesting
D.the more interesting it is to him

I didn't know that you were at home. I didn't visit you.
A.  If I knew that you had been at home, I would have visited you.
B. If I had known that you were at home, I would have visited you.
C.If I would know that you were at home, I visited you.
D.If I knew that you were at home, I would visit you.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
When Carol called last night, I ___________ my favourite show on TV.
A.watched
B.am watching
C.was watching
D.have watched

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Yesterday when I            at the station, the train                                     for 15 minutes.
A.arrived/ left
B.had arrived/ left
C.arrives/ has left
D.arrived/ had left

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The two countries have reached an agreement through dialogues described as ________.
A.productive
B.unproductive
C.productivity
D.counterproductive

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Today, the old couple has their family and friends _____ their golden wedding anniversary.
A.attend
B.to attend
C.attended
D.attending

Though the baby is only two months old, it is tiring to carry him for too long for he weighs ____________ .
A.as heavy as lead
B.as slippery as an eel 
C.as big as an elephant
D.as strong

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
                     number of boys were swimming in the lake, but I didn’t know                    exact number of them.
A.A/the
B.A/an
C.The/the
D.The/an

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Do you think doing the household chores is the                  of the women city? 
A.responsible
B.responsive
C.responsibility
D.responsibly