The World Health Organization has given some advice on to protect us from being infected(感染) with H7N9.
My friend Tommy often gives me a hand when I’m in trouble.
I got angry because he broke my new bike.
—Daddy, will you come home for supper with us tonight? —_______, but I might be a little late.
—What do you think of our plans? —______, Jim’s plan is better than yours.
—Do you think you can pass the exam? —______ It only took me half an hour to finish it.