专业、全面、易懂的全领域名词百科

IdidnotattendthelecturebyProfessorJackson.I_butI__allthismorning.

题型：单选题

选项

A. would; have washed

B. could; have been washing

C. would have; have been washing

D. could have; had washing

正确答案：B

IdidnotattendthelecturebyProfessorJackson.I_____butI______allthismorning.