(2014·山东实验中学二模)—May I trouble you with the question?—Sorry，but it is________my knowledge

Never give up. If you keep practicing speaking English every day. you’ll make great progress.—Thanks for encouraging me. I know .

It takes Jill 10 minutes________ to school every morning.

One of the best ways for people to keep fit is to______ healthy eating habits.

bored staying here for years, ________ whether I should try someplace different.