Only by _______________（科学的）training can Liu Xiang make such rapid progress in the 110-meter hurdle.
His words left me the ___________________ （印象）that he didn’t like the plan at all.
The United Kingdom __________________（组成）of Great Britain and Northern Ireland.
He had never been knocked out in a __________________（职业的）fight.
It is said that you will be affected by the ________________ （辐射）if you talk on the mobile phone for long.
The ________________（火山爆发）of a volcano often brings lava and ash clouds.
We will have an opportunity to ________________ （交换）views tomorrow.
People can easily become __________________（精神上）addicted to drugs when they start taking them.
It is OK to leave an _____________（电的）appliance on as long as you are using it.
Having guaranteed that we would get there before five ,I _____________（惊慌）.
品句填词He felt he needed to________(集中)more on his career.
He called the police because he was________(担心)for her safety.
After the traffic accident happened，the police were soon on the s________.
I'll invite my friends to dinner tonight so I need to r______ a table in advance.
The Great Wall of China is one of the seven w______ in the world.
品句填词We should keep the fine________(品质)of the working people.
She________(声明)that she didn't want to see him.
He has been living here since he________(退休)at the age of 60.
They followed t________ left by bears.
The sun is the u________ source of energy.
品句填词Old______(记忆)are often called up when you hear a particular song or a piece of music.
When in class，our mind must pay attention to what the teacher says and not________(走神)．
We all hope the holidays will be________(延长)for another two days.
He________(假装)as if he didn't know about the thing at all.
We held a________(庆典)after our team won.
The wallet stolen yesterday was found________(隐藏)in the dustbin outside the building.
If you don't like it，I'll________(交换)with you.
The workers packed the glasses and________(标上)on each box “This Side UP”．
Like other children，I'm curious to find out the________(起源)of human kind.
You have________(弄混)the meanings of the two words.
品句填词They don't like being________(打扰)by others when they are discussing the serious problem.
The mother told her son to be a good boy，________(警告)him to keep out of trouble.
The crowd________(惊慌失措)at the sound of the explosion.
Many________(青少年)are nearsighted because they have been exposed to too much television.
The writers of________(喜剧)often use different techniques to make their audiences laugh.
品句填词He o________ to lend me his new bicycle but I refused，for I didn't want to trouble him.
The little boy s________ great pain when his left leg was hurt.
The boy's parents were glad to see his s________ result of the final exam.
This is a project that r________ a great deal of money.
The official had to resign in r________ to the public pressure.