（中译英）请放下小桌板，调直座椅靠背。

A.Please return the seatback to the upright position and lower the tray table.

B.Please put down the tray table and straight up your seat back.

C.We have rice and noodles. Which do you prefer?

D.We are going to provide meal service.

正确答案：Please return the seatback to the upright position and lower the tray table.；Please put down the tray table and straight up your seat back.