—My friend fell off the bike and hurt his leg.
—________.
No problem
That’s OK
Sorry to hear that
Can earthquakes be predicted? The underlined part means "________".
— I wonder if I can learn English well. — _______. All things are difficult before they are easy.
— I missed the beginning of The Voice of China yesterday evening. —_________! But you can watch the re-play tonight.
What method can you think of _________ with these broken computers?
Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉).