【题目】The pupils here___all kinds of exercises every day in the past four weeks. A.kept busy doing B.keep on doing C.have kept busy doing D.have been kept busy doing试题答案 在线课程 【答案】D 【解析】在“in the last/past+时间段”的句子里,谓语动词要求用现在完成时。keep sb. bu...
36、sh exercise b3 and b4 on p11 and check answers together2) finish the follwing exercises(1) i have known him._(从我出生),because he is my father.(since i was born) (2) jim lives in the_(小镇的北部)。(northern part of the small town)(3) the local government has _( 把这个市...
The pupils here___ all kinds of exercises every day in the past few weeks.A.kept busy doingB.keep on doingC.have kept busy doingD.have been kept busy doing 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 D keep sb.busy doings sth.表示"使某人忙于",完成时的被动...