Although old-age pensions have risen considerably, they haven’t kept pace with the cost of living.

A. Unless you don’t try to work hard, you will fail in the exam.

B. Unless you try to work hard, you won’t fail in the exam.

C. Unless you try to work hard, you will fail in the exam.

D. Unless do you try to work hard, you will fail in the exam.

A. Mai speaks English more fluently than no one in our club.

B. Mai is the worst English speaker in our club.

C. Mai speaks English as fluently as other people in our club.

D. Mai speaks English the most fluently in our club.

A. He doesn’t drive as carefully as he used to.

B. He doesn’t drive carefully than he used to.

C. He doesn’t drive as carefully than he used to.

D. He didn’t drive as carefully he does.

A. Dave is taller student in the class.

B. Dave is the tallest student in the class.

C. Dave is the taller student in the class.

D. Dave is tallest student in the class.

A. Although we tried very hard, we failed in the final match.

B. We made all our efforts so that we could gain success in the final match.

C. Whatever efforts we had made, we weren’t able to win in the final match.

D. We failed in the final match as a result of all our great efforts.

A. None of the people that watched the game will ever forget it

B. The people watched the game none of whom will ever forget it

C. Nobody that watched the game will ever forget it

D. Both A and C are correct.