___an engineer,so he knows exactly what to do为什么选having been而不选as

___an engineer,so he knows exactly what to do为什么选having been而不选as 英文翻译：吉米梦想做一名工程师.Jim___ ___ ___an engineer. He’s an engineer是什么意思 He is an English engineer.(a Gearman engineer)(选择疑问) engineer engineer ___ an engineer,so he know exactly what to do.a.Being b.Having been c.As d.He is选择哪个?怎么分析? Is he an engineer or an architect? He works as an engineer.什么意思 He wants to work ___ an engineer He spends an hour drawing every weekend（改为同义句）It ___ ___an hour___ ___every weekend改后要是 It___ ___an hour ___ ___every weekend The Chinese engineer speaks English very fluently( )he were a native American.A.now that B.even thoughC.as though D.so that 英语翻译He ___an interest___in teaching English to Chinese students___ ___ ___university He thought and thought ___an idea___him.A.when...strikes B.unless..stuckC.until...struckD.until...struck he is an engineer（原句） he （）（）an engineer His ambition is to be an engineer 同义句 He____be an engineer when he ____up Jack wants to be an engineer when he is older (对an engineer提问） what did the doctor say about your mother's illness?He suggested that she ___an opreation at once.