The streets were deserted the policeman on duty.()

It was not until she has arrived home ______ remembered...

单项选择题It was not until she has arrived home ______ remembered her appointment with the doctor

We didn't know his telephone number; otherwise we _____...

单项选择题We didn't know his telephone number; otherwise we ______ him.

I doubt ______.A. whether he can comeB. if he can come ...

单项选择题I doubt ______.