问题

___________for his good skill, this doctor has a lot of visitors calling for help all the time.
A:Knowing
B:To know
C:Known
D:To have known;
B:To know
C:Known
D:To have known;
正确答案是:
同类题型
I was so disappointed when failed again— Don’t be so discouragedYou’ll be successful ______[ ]
_____ an ad does not lie, it does not mean it is altogether innocent
______ I take the magazine away from thereading room— No, you mustn’t. You ______ read it onlyhere.
What should I do with thispassage —- ______ the main idea ofeach paragraph.