Hello, I'd suggest these: 1 Parents and teachers should try to reduce the time that kids spend watching TV. 2 Exercising regularly can improve one's confidence. Best, Martha

Thank you all! that's helpful. reduce is better i think

i think it'll be. The kids waste most of the time by watching tv so the parents and teacher wants to tell them about its side affecte. Everyday exercise can develop our confident level.

Hi Fan, At first I felt that the collocation "to reduce the time" would be preferable to "to lessen the time". So, I did a Google search of the two expressions to see which one occurred most often. The results: "to lessen the time" : 12,900,000 hits "to reduce the time" 274 000 000 hits So I guess my hunch turns out to be a clear winner. Cheers

Hi Fan! Hope this helps you! So the two sentences you wrote are grammatically correct! Although to some, the "the" in "the kids" and "one's" in the second sentence might be considered unnecessary. But there are no spelling or grammar errors in either of the two!