VII. Choose one sentence that best rewrites the root one.
He didn’t work hard, so he failed the exam.
A.If he worked hard, he wouldn’t fail the exam.
B.If he hadn’t worked hard, he would have failed the exam.
C.He would have passed the exam if he had worked hard.
D.He had passed the exam if he would have worked hard.

VII. Choose one sentence that best rewrites the root one.
He didn’t take any medicine so he feels worse now.
A.If he had taken the medicine, he would have felt better now.
B.If he had taken the medicine, he would feel better now.
C.If he took the medicine, he would feel better now.
D.Unless he took the medicine, he wouldn’t feel better now.

A.suit
B.build
C.guilty
D.guitar

A.confuse
B.pollute
C.nuclear
D.reduce

A.that
B.this
C.think
D.mother

Choose the best answer to each of the following questions.
_____you have finished your work, you can go home.
A.No sooner
B.As soon as
C.While
D.Before

III. Choose the best answer (A, B, C or D) that best completes each sentence.
The _________ has threatened many of the animals in this park.
A.rainforest
B.population
C.increase
D.contamination

III. Choose the best answer (A, B, C or D) that best completes each sentence.
This park was _________ before World War II.
A.set
B.located
C.established
D.stationed

III. Choose the best answer (A, B, C or D) that best completes each sentence.
We were very _________at his success.
A.surprised
B.interested
C.keen
D.fond

III. Choose the best answer (A, B, C or D) that best completes each sentence.
One species is dependent __________ another of survival.
A.on
B.to
C.of
D.at