Obesity may be considered a serious health problem.

A. I read this story five times so far.

B. I have read this story five times so far.

C. I had read this story five times so far.

D. I am reading this story five times so far

A. Doing housework is boring and tiring.

B. It’s interesting doing housework.

C. Don’t do housework.

D. Boring and tiring is housework.

A. The program is really interesting, doesn't it?

B. The program are really interesting, isn't it?

C. The program is really interesting, isn't it?

D. The program does really interesting, doesn't it?

A. There will be a lot of interesting activities to do in this program.

B. There will be a lot of interesting activities doing on this program.

C. There will be a lot of interesting activities do in this program.

D. There will be a lot of interesting activities to do on this program.

A. Lan doesn't like playing soccer and either she doesn't like washing up.

B. Lan doesn't like playing soccer and she doesn't like washing up, either.

C. Lan like doesn’t playing soccer and she doesn't like washing up, either.

D. Lan doesn't like playing soccer and washing up she doesn't like, either.

A. The young pioneers club are raising some money helping people in the flooded area.

B. The young pioneers club is raising some money to help people in the flooded area.

C. The young pioneers club is raising some money help people in the flooded area.

D. The young pioneers club is raising some money to help people in the flooded area.

A. Where do they plant and water trees along the streets?

B. Where they plant and water trees do along the streets?

C. Where along do they plant and water trees the streets?

D. Where do they plant water and trees along the streets?