Complete the sentences (– = no article, a, an, the).

TechTalk: Tech teens will hate!

A man from Cambridge has invented (a)   app to solve a communication problem with his thirteen-year-old son, Ben.

Nick Herbert bought Ben (a)   smartphone when he started secondary school.

But Ben loves playing games, so he often put (a)   phone on silent.

Nick was annoyed when Ben didn’t answer his calls and so he developed ReplyASAP. When Nick uses ReplyASAP to contact Ben, it locks (a)   screen on Ben’s phone.

There is also (a)   alarm that tells Ben he has a message.

The alarm continues until Ben replies to his dad. So Ben can’t have his phone on silent and continue playing his game. But Nick promises not to use the app all the time – only when he has (a)   information for Ben that is important.