精选优质文档-倾情为你奉上过去进行时 北师大版英语 【单选题】Has Jack finished his homework yet? I am waiting for him. Ive no idea. But he _ on it the whole afternoon. A. is working B. worksC. was workingD. worked 答案：C英语 【单选题】My mother _ when someone knocked at the door. A. cooked B. is cooking C. will cook D. was cooking 答案：D英语 【单选题】一 Did you see him come in? 一 No, I didnt. I _ a basketball match at that time. Awas watching Bam
