问题

I had just stepped out of the bathroom and was busy drying myself with a towel ________ I heardthe steps.[ ]

A: while
B: when
C: since
D: after

正确答案是：

同类题型

Did the reporter say________—Yes,from Yunnan.

1We are planning______one-day trip to Century Park during the winter holiday ______ trip must be fullof fun, I think.

If it ________tomorrow, we __________go to the park.

If he shouldn’t have been so ________ about his food, he would be healthier now. [ ]

Why do you / tu:z / this book for his birthday