Write the second sentence so that it has a similar meaning to the first one. Use the given word in the bracket.

When did Marta start her work as a marine conservationist? (WORKING)

A. The increase of greenhouse gases in the atmosphere makes the Earth warmer.

B. Carbon dioxide helps to release the Earth’s heat.

C. The burning of oil and coal releases carbon dioxide to the atmosphere.

D. Global warming is the warming of the Earth’s temperature.

A. had

B. been

C. being

D. are

A. Students can only pursue higher education if they graduate from high school.

B. Students can pursue higher education unless they graduate from high school.

C. In order to graduate from high school, students must pursue higher education.

D. In order to graduate from high school, students must be eligible for higher education.

A. Having seen, we were exciting with the Northern Lights last year.

B. Having seen the Northern Lights last year, we got really excited.

C. We were having seen the Northern Lights last year, excited really.

D. Excited really, we have having seen the Northern Lights last year.

A. The first prize that Jim won surprised all of us.

B. The first prize was won by Jim, which surprised all of us.

C. All of us were not surprised when Jim won the first prize.

D. Having won the first prize, Tim and all of us were surprised.

A. Tom won this prize for the first time.

B. Tom was the only person to win this prize.

C. It was Tom who first won this prize.

D. It was the first prize that Tom won.