He will never_______anything if he doesn’t work hard.

Do you have difficulty ____ English?

— Amy, I called you yesterday evening, but nobody answered the phone.— Oh, I _________ a walk with my mother at that time.

How much does the ticket ______ from Shanghai to Beijing?

－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.