单选题Mr.John was busy,____ he could not come.A.but B.therefore C.however D.and但我觉得therefore要用逗号.我因此选D我觉得therefore后面要用逗号

单选题Mr.John was busy,____ he could not come.A.but B.therefore C.however D.and但我觉得therefore要用逗号.我因此选D我觉得therefore后面要用逗号 单选题? 单选题. 单选题 单选题 单选题, 单选题, They both have _____ work to do,so they are _____ busy.(单选题) Mr Gilbert said he was inquiring about a certain patient,a Mr John Gilbert 英语单选题(为什么不是用when而是用that)It was only after he had read the papers ______ Mr.Gross realized the task before him was extremely difficult to complete. A. when B.that ( ) mr green very busy 一道初一英语单选题Lily was so ___looking at the picture that she forgot the time.A,carefully B,carefulC,busilyD,busy我觉得选D (be busy doing sth)可是标准答案是选B,不是很了解是我错了还是标准答案错了?难道有be ca Mr Black was very busy and often went from one city to other 改错 Mr White was quite a busy……谁知道全文和答案? Mr black said that he was busy.(that)干嘛用的? 一道英语单选题,With the evidence uncovered ,the excuse John stuck to____ unreasonable.A provedB proveC be provedD proving 根据下面一句话回答一道单选题 英语When Mr.Finch retired,he bought a small house in a village near the sea.The house was built in 1588.1.Mr.Finch bought an old house in_____century.A.18 B.15 C.16并帮忙讲解为什么 英语单选题,