高等继续教育 / 统考英语B
正确率:统考%
题型描述: 单选题
B.musthavebeenbusyworking
C.mustbebusywording
D.wouldhavebeenbusyworking
He didn’t show up at the party yesterday. He ____ in the lab.
A.mustbebusytoworkB.musthavebeenbusyworking
C.mustbebusywording
D.wouldhavebeenbusyworking
参考答案:
佳题速递: