下列缩略语正确的是_______.
— It sounds ________ that a truck hit two cars. — Luckily, _______of three drivers was hurt.
— What does the fresh juice contain? — ________of the juice ________ orange. It's very pure.
— Why can’t the boy understand what the American teacher said? — Because he is a beginner, _______ he knows ________English.
— Mom, I got _______ place in the English Speech Competition? — _______! That's really good news, dear!
— What are the _______ doing there? — They are busy _______ their science experiment.