单选题If only I _____ how to operate a computer as you do!Ahad knownBwould knowCshould knowDknew
单选题
If only I _____ how to operate a computer as you do!
A
had known
B
would know
C
should know
D
knew
参考解析
解析：
句意：要是我像你一样懂得怎样操作电脑就好了。If only引导的句子，对现在的情况表示虚拟，用过去时，故选D。
句意：要是我像你一样懂得怎样操作电脑就好了。If only引导的句子，对现在的情况表示虚拟，用过去时，故选D。
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