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--Theradioisn'tworking.Iwonderwhat'shappenedtoit.--Haveyouthebatteries?--Theradioisn'tworking.Iwonderwhat'shappenedtoit.--Haveyouthebatteries?A.triedtochangeB.triedchangingC.managedtochangeD.managedchanging意

题目详情
--The radio isn't working.I wonder what's happened to it.--Have you____ the batteries?
--The radio isn't working.I wonder what's happened to it.
--Have you____ the batteries?
A.tried to change
B.tried changing
C.managed to change
D.managed changing
意思是什么///
▼优质解答
答案和解析
B.tried changing
收音机没动静了.什么情况啊?
换个电池试试.