Учение о биосфере было создано: а) Ж.-Б. Ламарком; б) В.И. Вернадским;

1 the elf is working hard
2 the reindeer kicked hard
3 santa smiles at the elves
4 the elf picked up toys
5 the children is looking at the christmas tree
6 mum baked a christmas cake 
7 dad filled the bowl with candy canes
если не ошибаюсь, то так