$\text{@su}$

`1`, 

C1: It is said that he has done it for two days

C2: He is said to do it for two days

`2`, 

C1: It is hoped that the spread of coronavirus in the world will stop soon

C2: The spread of coronavirus in the world is hoped to stop soon.

`3`, 

C1: It has been reported that Ha Long Bay is the most beautiful natural wonder in Viet Nam.

C2: Ha Long Bay has been reported to be the most beautiful natural wonder in Viet Nam.

`4`, 

C1: It is said that the coronavirus has killed a lot of people all over the world

C2: The coronavirus is said to kill a lot of people all over the world

`5`, 

C1: It was expected that more than 100.000 people attended the festivals at the Perfume Pagoda last year.

C2: More than 100.000 people were said to attend the festivals at the Perfume Pagoda last year.

Bonus:

They/People + say/believe/think/... + that + clause

= It is said/believed/thought/... + that + clause

= S + tobe + said/believed/thought/... + to V / not to V

$\text{#BTS}$