I can’t do my lessons with so much noise going on, Tom. I’d appreciate ______ the radio down.

My parents are ________ to live in the countryside,where the air is clean and the vegetables are fresh．

Mary had to go to a meeting，so she left her children ___________ at home.

A lunar probe-Chang’e-2_______ as much as 2 tons was sent up into space on October12010.

 If _____ without following the doctor’s instructions, the medicine may have serious side effects.