问题

_______ you are busy now, let’s go next time, OK
A:a, an
B:a, a
C:an, a
D:an, an;
B:a, a
C:an, a
D:an, an;
正确答案是:
同类题型
With all the housework ________, Marty went to a movie,happy and relaxed.
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Look! If we had begun to do the work yesterday morning, we _____ ourselves just like them.
Hearing the________story,the little boy had a________ expression on his face.[ ]