用括號中所給的適當(dāng)形式填空或根據(jù)漢語提示寫單詞（注意詞形變化），并將答案填入答題卡內(nèi)，每空不超過兩詞
    During the past thirty years，China has （1）

changed

changed

（change） a lot．Many people have moved into tall buildings．Some of them have their own cars．People's life has improved a lot．It's much（2）

easier

easier

（easy） for people to communicate with （3）

each other

each other

（互相）．They can talk on the phone or on the Internet．More and more people have learned to use QQ and WeChat．Some overseas Chinese（海外華人） are suprised at the great changes in China when they（4）

return

return

（return）．
    However，some problems come along with the changes．The environment is not as good as before．The air in many big cities is becoming（5）

worse

worse

（bad） and worse．Students are too busy to exercise．In order to get good（6）

grades

grades

（grade），some students have to stay up late．It's （7）

impossible

impossible

（possible） for them to live a happy life without a strong body．As for the old people，some live alone and they feel（8）

lonely

lonely

（孤獨(dú)的）all the time．
    Luckily，the government has（9）

realized

realized

（realize） these problems．It is trying its best （10）

to improve

to improve

（improve） the situation．