根据首字母或汉语提示，在答题卡上写出下列句子中单词的完全形式。
Tianjin plans to start a smart city program to deal with t____ jams.
Can you i____ what it would be like to live under the sea?
Teen singers TF boys are popular a____ young people.
Our traditional c____ like Peking Opera should be passed down.
It's reported that China is becoming the s____ most overweight country, just after the US.
Now, you can enjoy ____ （免费的）Wi-Fi in many places.
People like____ （分享）things through WeChat now.
We should always keep an eye on school____ （安全）.
Helping others is the most____ （有价值的）thing in the world.
I ____ （很少）watch movies on my smart phone because it's not good for my eyes.
