Question

【題目】—Sam, come downstairs, please. I need your help.
—Sorry, Mum. I _________ on the phone.
A.am talking
B.talked
C.was talking
D.have talked

Answer 1

【答案】A
【解析】考查現(xiàn)在進(jìn)行時(shí)。【現(xiàn)在進(jìn)行時(shí)】表示說話時(shí)正在進(jìn)行或發(fā)生的動(dòng)作,也可表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作．結(jié)構(gòu)：助動(dòng)詞 be ( am / is / are ) +現(xiàn)在分詞。句意：Sam,下樓來，我需要你的幫助。對(duì)不起，媽媽，我在打電話。I am talking on the phone。所以答案是A。