Choose the best answer A, B, C or D for each sentence
My teacher _______ while he _______ a car.
A.didn’t smoke-is driving
B.hasn’t smoked-was driving
C.doesn’t smoke-is driving
D.hadn’t smoked-was driving

Pick out the word whose underlined part is pronounced differently from that of the others.
A.scream
B.sneaky
C.decrease
D.break

Pick out the word which is stressed differently from the others.
A.advance
B.practice
C.aware
D.explain

Choose the best answer (A, B, C or D) that best completes each sentence.
If I ………….. you were sick, I would have called sooner.
A.knew
B.have known
C.had known
D.would know

Choose the best answer (A, B, C or D) that best completes each sentence.
After the water workers went on strike, there was a ………….. of water.
A.loss
B.drainage
C.shortage
D.decrease

Choose the best answer (A, B, C or D) that best completes each sentence.
Don’t worry. You …………… if there’s a change of plan.
A.will be told
B.will tell
C.tell
D.told

Choose the best answer (A, B, C or D) that best completes each sentence.
She apologised …………… waiting so long.
A.to me for
B.for keeping me
C.for me keeping
D.for me

Choose the best answer (A, B, C or D) that best completes each sentence.
His parents insisted ………… a medical training course.
A.on his taking
B.on him to take
C.him to take
D.on taking him

Choose the word whose main stress is placed differently from the others in each group
A.computer
B.different
C.capable
D.calculate

Select the synonym of the following bold and underlined word in each sentence in the unit
Each time you turn it on, with appropriate hardware and software, it is capable of doing almost anything you ask.
A.suitable
B.good
C.right
D.important