$\text{1.}$ She is certain. Her son will be accepted to a high school for the gifted.

-> She is certain that her son will be accepted to a high for the gifted

$\text{2.}$ My father is upset. My brother wants to drop out of high school.

-> My father is upset because my brother wants to drop out of high school.

$\text{3.}$ He is amazed. His colleagues celebrate his birthday in a fun way.

-> He is amazed that his colleagues celebrate his birthday in a fun way

$\text{4.}$ She was worried. Her father is surgery would be unsuccessful.

-> She was worried that her father’s surgery would be unsuccessful.

$\text{5.}$ The rain had finally stopped. We were relieved.

-> We were relieved that the rain had finally stopped.

$\text{6.}$ Hanoians can soon travel on the sky - train. They are very eager about that.

-> Hanoians are very eager that they can soon travel on the sky train.

$\text{7.}$ Michelles puppy has been acting strange lately. She is aware of it.

-> Michelle is aware that her puppy has been acting strange lately.

$\text{8.}$ His short story will win first place in the writing competition. He is confident about it.

-> He is confident that his short story will win first place in the writing competition. 

$\text{9.}$ The weather for Tet turns out to be so nice. Everyone is pleased about it.

-> Everyone is pleased that the weather for Tet turns out to be so nice.

$\text{10.}$ Vietnam has so many magnificent natural wonders. I am amazed.

-> I am amazed that Vietnam has so many magnificent natural wonders

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Cấu trúc: S + be+ adjective + that + clause