Tìm và sửa lỗi sai trong các câu dưới đây

1. Sir James Dewar invented the thermos in 1892 to keep (A) heat away from (B) the liquefied gas with which (C) he was experiment (D) .

2. Not only did the Egyptians preserve (A) the dead bodies of important people, but they also buried with the dead person (B) every which object (C) he might possibly (D) use in afterlife.