在“He acted as if he were smoking.”中,为什么不用was而用were?请说明理由,

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• 在“He acted as if he were smoking.”中,为什么不用was而用were?请说明理由,
• 在“He acted as if he were smoking.”中,为什么不用was而用were?
• there must be something seriously wrong with the machine请翻译全句,其中seriously是副词,在中文意思中不是用来修饰wrong的吗,为什么在原句中却是修饰something的,另有为什么不能用serious呢 2）2)have you seen a pen?is it _______black one i think i saw it somewhere A)the B)a 请问空格处后是特指那只黑色的笔,为什么不能用the呢3）this factory is quite different from______beforeA)what it was B)that is was C)which it was D)what was it 请说明选择的理由,为什么不能选别的答案 4）we were all surprised when he made it clear that he_____office soonA)leaves B)wo
• should we succeedThe business is risky,but it will be terrific if we give it a try._____,we would be rich.A.Would we succeed B.Could we succeedC.Should we succeed D.Might we succeed虚拟语气就一定要用should?其他词不也可以带虚拟语气.
• were you taught to read by your parents 改成被动式如题还有:are we going to be met the train station by your cousin?改被动.