He___as if he had never lived in England beforeA.made B.did C.conducted D.behaved

He___as if he had never lived in England beforeA.made B.did C.conducted D.behaved He told as if he knew everything.还是He told as if he had known everything. He-Ne激光器 价格 He he ni ne 是什么 If he had time,he would come to visit you.此句中had 是什么词性? What happiness is not happy if he had you better. 分析此句：only if he had seen me yesterday If he had had time,he would come.有这种句型嘛?是有一个had还是两个? I'll be very glad_____ to the lecture this afternoon.A.if he will comeB.if he comesC.if he should comeD.if he had come he-ne激光器频率多少 He-Ne的波长是多少? He Ne Ar 哪个稳定 He said if he had time,he (go)to the cinema that night. ___ the meeting ,he would have attended.A If he knewB If he hadn't knownC Had he knownD If he didn't know He had accomplished little if anything at all.if是什么用法? If he had only had enough money,he would have bought that house.第一个only是什么意思? He looked as if he had lost a pound and found twenty penceTranslate the sentence if he had worked harder,he would have succeeded,这里为什么要用would have succeded?