He is rather difficult to make friends with,but his friendship,＿ is more true than any othe...He is rather difficult to make friends with,but his friendship,＿ is more true than any other.A.oncegained B.when to gain C.after gaining D.whilegaining 为什么不能选BCD而要选A?请分析选BCD错在哪里?
问题描述：
He is rather difficult to make friends with,but his friendship,＿ is more true than any othe...
He is rather difficult to make friends with,but his friendship,＿ is more true than any other.A.oncegained B.when to gain C.after gaining D.whilegaining 为什么不能选BCD而要选A?请分析选BCD错在哪里?
答
A - once gained is more true than any other
一旦拥有，别无所求
答
看意思就不对啊，一旦得到他的友谊，他的友谊比别人都真挚。B啥时得到他的友谊？？？Cgaining不对啊，友谊是被得到，应该是被动态。D也是，主动态
答
此处gain的主语是friendship, 二者是被动的关系，只有A选项是表示被动的，B没有这种说法，C、D表示主动意思。整句话的意思是很难与他交到朋友，但一旦与他成为朋友，他的友谊无比真挚。
答
错在语态不对，另外形式不对，最后意思不通。 once gained 是一旦获得的意思
答
A
friendship和gain是被动关系,只能考虑过去分词了. B本身就错误,没有这样用法.
C D 都差不多,gaining现在分词是表主动所以不考虑.
整句意为：很难和他交朋友,但是一旦获得他的友谊,其友谊比任何.都真