What have you done ____the radio It's not working.1.What have you done ____the radio It's not working.A.on B.to C.for D.of 2 .John didn't ____for half an hour after falling and hitting his head.A.come back B.come in C.come out D.come to

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What have you done ____the radio It's not working.1.What have you done ____the radio It's not working.A.on B.to C.for D.of 2 .John didn't ____for half an hour after falling and hitting his head.A.come back B.come in C.come out D.come to

What have you done ____the radio It's not working.1.What have you done ____the radio It's not working.A.on B.to C.for D.of 2 .John didn't ____for half an hour after falling and hitting his head.A.come back B.come in C.come out D.come to
What have you done ____the radio It's not working.
1.What have you done ____the radio It's not working.A.on B.to C.for D.of 2 .John didn't ____for half an hour after falling and hitting his head.A.come back B.come in C.come out D.come to

What have you done ____the radio It's not working.1.What have you done ____the radio It's not working.A.on B.to C.for D.of 2 .John didn't ____for half an hour after falling and hitting his head.A.come back B.come in C.come out D.come to
第一个是to,你对它干了什么,如果是for,那radio不应该坏 第二个或许应该是come to,原因是come to 有苏醒过来的意思 over!