It was an interesting novel. I, therefore, stayed up all night to finish it.

A. Though it was an interesting novel, I stayed up all night to finish it.

B. Unless it was an interesting novel, I would stay up all night to finish it.

C. So interesting was the novel that I stayed up all night to finish it.

D. I stayed up all night to finish the novel, therefore, it was interesting.

We cut down many forests. The Earth becomes hot.

A. The more forests we cut down, the hotter the Earth becomes.

B. The more we cut down forests, the hotter the Earth becomes.

C. The more forests we cut down, the Earth becomes hotter.

D. The more we cut down forests, the Earth becomes hotter.

He is very intelligent. He can solve all the problems in no time.

A. So intelligent is he that he can solve all the problems in no time.

B.He is very intelligent that he can solve all the problems in no time.

C. An intelligent student is he that he can solve all the problems in no time.

D. So intelligent a student is he that he can solve all the problems in no time.

It doesn't cost much to run a solar power system.

A. A solar power system is quite cheap to set up.

B. Running a solar power system costs nothing. 

C. A solar power system costs so much to run. 

D. Running a solar power system is not costly. 

They were exposed to biased information, so they didn't know the true story.

A. If they got unbiased information, they could know the true story. 

B. If they had unbiased the information, they could have known the true story. 

C. If they had been exposed to unbiased information, they would have known the true story. 

D. If they have exposed to the unbiased information, they could have seen the true story. 

"Getting a good job doesn't matter much to me "

A. "I am only interested in getting a good job."

B. "It's interesting for me to get a good job."

C. "I am not good at getting a good job."

D. "I don't care about getting a good job."

There is no doubt that Martin is the best candidate for the job.

A. Martin is by all means the best candidate for the job.

B. Without question, Martin is the best candidate for the job.

C. In all likelihood, Martin is the best candidate for the job.

D. Quite by chance, Martin is the best candidate for the job.

People rumour that the Prince secretly got married to an ordinary girl.

A. The Prince is rumoured to have secretly got married to an ordinary girl.

B. It was rumoured that the Prince secretly got married to an ordinary girl.

C. The Prince was rumoured to secretly get married to an ordinary girl.

D. The Prince had secretly got married to an ordinary girl, as it was rumoured.

Sam doesn’t find it difficult to get up early in the morning.

A. Sam is in two minds about getting up early in the morning.

B. Sam is not hesitant to get up early in the morning

C. Sam is accustomed to getting up early in the morning.

D. Sam is pleased with getting up early in the morning.

I did not see Susan off at the airport. I feel bad about it now.

A. I could have seen Susan off at the airport.

B. If only I had seen Susan off at the airport.

C. That I did not see Susan off at the airport escapes me now.

D. It suddenly dawns on me that I should have seen Susan off at the airport.