A ver si me podéis ayudar...es urgente... adjunto archivo gracias
ItzMikeYT
The science fair is held every four years students are not allowed in the laboratory without a teacher animals are not used in the experiments new discoveries are written about in magazines new research is done every year
students are not allowed in the laboratory without a teacher
animals are not used in the experiments
new discoveries are written about in magazines
new research is done every year