问题

There is ______ “u” and ______ “s” in the word “bus”.
A:a, a
B:a, an
C:an, an
D:an, a
B:a, an
C:an, an
D:an, a
正确答案是:
同类题型
We have ______ our sports meeting till next Monday because of the bad weather.
There will be great increase _____ farming. [ ]
My mother often tells me not to play ____ fire. [ ]
Have you finished doing the work_________?—Not_________.
Don’t be discouraged._______ things as they are and you will enjoy every day of your life.