If only I__how to operate a computer as you do.A.had known B.would know C.should know D.knew

If only I__how to operate a computer as you do.A.had known B.would know C.should know D.knew If only I__how to operate a computer as you do.A.had known B.would know C.should know D.knew only if only if/if if only ,if necessary 英语作文 If I have only three monther to live if you want to be healthy,eat only healthy food To:If i can .I wish i was only. If only you'd be as you used to be If only和Only if区别是什么 if only only if有什么区别 only if 和 if only怎么样区别? If only和Only if区别是什么 if only 与only if 的区别 if only 和only if 的区别 If the only sister of your mither's only brother has an only child,what is that child to you? If we give enough if we learn to trust,But only love can say什么意思 if i have only enough to eat and to wear.only enough为什么在have后面啊,enough修饰