Sound travels ______ air ______ a speed of about 340 metres per second.

A．over; in           B．through; at         C．by; at             D．through; over

 

sound , nice , write , friend , feel , yourself , like , need , helping , how , sad , travel

 
We have a lot of trouble in our life, but we have to face them. When you are feeling unhappy or forget how great you are, there are six ways to make you  【小题1】 good about yourself.
（1）Look in the mirror（镜子）and say to 【小题2】 , "I'm a special person and there's no one in the world  【小题3】 me. I can do anything ! "It may not  【小题4】 so good, but it really works !
（2）Do something 【小题5】 for someone. 【小题6】 others always makes you feel good.
（3）Smile! Be  【小题7】 to people you meet. Look for the good things in your friends and family.
（4）Learn something new! Have you always wanted to decorate your own room or learn 【小题8】 to swim? Go for it! New challenges（挑战）are fun and give you a sense of accomplishment when you have finished.
（5）Read and start a diary. Turn off the TV and let your imagination（想象）fly ! If you have any thoughts ,dreams or anything you want, 【小题9】 them down! Writing always helps to express your feelings.
（6）Stay with your family. We all 【小题10】 our family time. Talk with your Mum and Dad or maybe even your cousin.