The student was happy that the letter arrived before he had planned. Being careful can really prevent a lot of wastage.
Grandfather looked comfortable in the new armchair.
The audience was surprised by the impressive performance by the group.
The new design for the project was quite colourful.
She was extremely cheerful on her birthday.

right angles are formed by perpendicular lines. if the lines would extend, to make two intersecting lines, they would form four right angles.

the teacher i would like to have must be a kind, caring and understandable teacher. she should be interactive with us and always plan fun activities to in our studies. she should be a teacher who would correct our mistakes when we do something wrong and guide us if we are weak. she should always be strict if we do something bad but must be praising us when we do something good. she she not take any as her favorite in her class but take everyone as her favorite.

(i hope this will u if there is something send me a reply)