1). Complete the phrasal verbs with the correct particle:. 1. It’s hard for elderly people to keep _____.the changes in computer technology. 2. He approached me and growled:” Keep ______ from my daughter!” 3.Though Robin was constantly chased by the sheriff, he kept ______ helping the poor. 4. I had a feeling she was keeping something important ________ . 5. It’s too late! Keep the radio ___ 2). Fill in the gaps with the correct preposition 1. The requirements ______ the contest were extremely strict. 2. The teenagers were charged _______ vandalism. 3.Who was responsible _______ the organizing the party? It was a real failure! 4.Smoking in public places is ______ the rule. 5.Clients were tricked ______ believing their money had been invested.

It’s hard for elderly people to keep up with the changes in computer technology.
(To "keep up with" means to stay informed about or remain at the same level as something or someone, especially in terms of progress or developments.)

He approached me and growled: “Keep away from my daughter!”
(To "keep away" means to stay at a distance from someone or something.)

Though Robin was constantly chased by the sheriff, he kept on helping the poor.
(To "keep on" means to continue doing something, even in difficult circumstances.)

I had a feeling she was keeping something important back.
(To "keep back" means to withhold something, usually to keep it hidden or undisclosed.)

It’s too late! Keep the radio off.
(To "keep off" means to switch something off, especially referring to electrical devices like a radio.)

The requirements for the contest were extremely strict.
(We use "for" when talking about something that is needed or required for a particular purpose.)

The teenagers were charged with vandalism.
(The correct preposition with "charged" in this context is "with," as in being formally accused of a crime.)

Who was responsible for organizing the party? It was a real failure!
("Responsible for" indicates the person who is in charge or to blame for something.)

Smoking in public places is against the rule.
("Against" is used to show opposition to a rule or law.)

Clients were tricked into believing their money had been invested.
("Tricked into" means to deceive or mislead someone into doing something or believing something.)