A. Having paid my taxes B. Paying my taxes C. My taxes having been paid D. My taxes have been paid
单项选择题It's no use () any longer. He may come by any bus.
A. waiting B. to wait C. having waited D. to have waited
单项选择题It is no easy job to be a teacher. One has to be extremely patient () the students.
A. at B. about C. on D. with
