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.

在利用鸡血进行“DNA的粗提取与鉴定”的实验中，相关叙述正确的是

美国总统特朗普希望美国企业尽可能多地在本国建厂，并招聘美国本土工人。在大选过程中，特朗普就曾公开呼吁苹果将手机生产线转移至美国，他还承诺将把资金回流企业的税收从目前的26%降至10%~15%。苹果手机生产线选择在中国，不仅因为其生产便宜，还因为有上千家供应商都在中国。据此回答以下问题。