—We’ve been trying hard, but can’t solve the problem.—I think you can ________ it in another way.

If you keep ______ ,you’ll be a very good swimmer one day.

 --Driving less, walking more is good for our health. --So I’d rather_____ an hour’s walk to work than consider ______ a car. 

－English is too hard for me to study well. I don’t want to learn it any more.－Don’t        . It is useful in the future.

We plan to ________ a short play on Teachers’ Day. 。