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【用call的适当介词填空1.Allshipsailingontheoceanscall____helpbyradioinEnglish.2.Wehavetocall___ourtriptoEuropebecauseitcoststoomuch.】
题目内容：
用call的适当介词填空
1.All ship sailing on the oceans call____help by radio in English.
2.We have to call___our trip to Europe because it costs too much.优质解答
for
off
1.All ship sailing on the oceans call____help by radio in English.
2.We have to call___our trip to Europe because it costs too much.
优质解答
off
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