Choose the best sentence - a, b, c, or d – made from the given cues.

He/ rather/ spend/ holidays/ a farm/ seaside.

A. We won't survive unless we start working cleaner, safer sources of energy. 

B. We won't survive unless we start work on cleaner, safer sources of energy.

C. We will survive unless we start to work cleaner, safer sources of energy.

D. We won't survive unless we start working on cleaner, safer sources of energy.

A. Heavy rain caused widespread flooding in this region lately. 

B. Heavy rain has caused widespread flooding in this region lately.

C. Heavy rain had caused widespread flooding in this region lately. 

D. Heavy rain was caused widespread flooding in this region lately.

A. If you don't help me, I couldn't meet her last week. 

B. If you' didn't help me, I couldn't meet her last week. 

C. If you hadn't helped me, I couldn't meet her last week. 

D. If you hadn't helped me, I couldn't have met her last week.

A. I have never visited Paris before.

B. I am used to visiting Paris. 

C. I used to visit Paris.

D. I have visited Paris many times before.

A. Peter encouraged his classmate to get an A in Chemistry. 

B. Peter persuaded his classmate to get an A in Chemistry. 

C. Peter insisted on getting an A in Chemistry for his classmate. 

D. Peter congratulated his classmate on getting an A in Chemistry.

A. People rumor about going to increase the oil price by 5%. 

B. The oil price is rumored to be on the point of increasing by 5%. 

C. The oil price rumors to be on the point of increasing by 5%. 

D. It is rumored to be going the oil price to increase by 5%.