____ the fire broke out, three fire-engines were rushed to the spot.

－If I’m not mistaken, your birthday is coming up. Has your brother sent you anything?－Not yet. He never forgets, _________.

China needs to strike a balance between maintaining a ______ fast and stable development and economic structural adjustment. 

Failure hurts adults and children ______ , but it can make a positive contribution to your life once you learn to use it.

—Jenny,they say you have asked for a leave because of a sudden headache.I’m worried about you,and are you ________better now?—I’m all right now,thanks for your care.