Quang had his brother fix the ball yesterday.

A. We shall never meet each other again.

B. I've been looking for you for a long time.

C. I'm looking forward to meeting you again soon.

D. Please don't come and meet US again.

A. I have ever had some more delicious meal than that.

B. That meal isn't so delicious as the meal I've ever had.

C. That meal was as delicious as the meal I've ever had.

D. I have never had a more delicious meal than that.

A. These plans have covered nothing.

B. These plans have covered everything.

C. In these plans nothing has been looked over.

D. In these plans everything has been looked over.

A. You may have the allergy, so must be careful what you eat and drink.

B. You might have an allergy, so be careful for what you eat and drink.

C. You may have an allergy, so be careful with what you eat and drink.

D. You might have an allergy, so you are careful of what you eat and drink.

A. If we don't keep our environment clean, we won't enjoy a healthy life.

B. Unless we won't keep our environment clean, we don't enjoy a healthy life.

C. We keep our environment clean, and we wouldn't enjoy a healthy life.

C. We keep our environment clean so we didn't enjoy a healthy life.

A. Despite they're twins, they don't have many interests in common.

B. They don't have many interests in common though they're twins.

C. Although they're twins, but they don't have many interests in common.

D. They don't have many interests in common because they're twins.