`~rai~`

$\begin{array}{I}I\\\text{1.You should not allow a four-year-old child to walk home alone.}\\\text{2.Bob denied taking Mike's car.}\\\text{3.He is a more persuasive speaker than her brother.}\\\text{4.He is thought to be staying in London at the time of the acident.}\\\text{5.Had it not been my Mom's help,I couldn't have hold a big party.}\\II.\\\text{1.were such easy questions}\\\text{2.has led inventions}\\\text{3.beautifully despite}\\\text{4.had difficulty in understanding}\\\text{5.came shock to John to hear}\end{array}$

=>
I/
1. You should not allow a four-year-old child to walk home alone.
2. Bob denied taking Mike's car.
3. He is a more persuasive speaker than her brother.
4. He is thought to be staying in London at the time of the accident.
5. Had it not been for my Mom's help, I couldn't have held a big party.

II/
1. They were such easy questions that all the students could give the correct answers.
2. The microchip has led to the invention of many useful things.
3. Giulia sings beautifully despite her lack of training.
4. Nancy had difficulty in understanding what his English teacher said.
5. It came as surprise to John that he had failed his driving test.