when we are ___ trouble they often help us.A.inwhen we are ___ trouble they often help us.A.in B.on C.with D.without选择哪个,为什么

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whenweare___troubletheyoftenhelpus.A.inwhenweare___troubletheyoftenhelpus.A.inB.onC.withD.without选择哪

when we are ___ trouble they often help us.A.inwhen we are ___ trouble they often help us.A.in B.on C.with D.without选择哪个,为什么
when we are ___ trouble they often help us.A.in
when we are ___ trouble they often help us.
A.in B.on C.with D.without
选择哪个,为什么

when we are ___ trouble they often help us.A.inwhen we are ___ trouble they often help us.A.in B.on C.with D.without选择哪个,为什么
A,固定搭配