Only when you have obtained enough data______ come to a sound conclusion.

I always persuade Mary to have both feet onthe____as she wants to marry a millionaire and accomplish her goals in an easyway.

Our class _______ 55 students at that time.

The poor man lives ________ in the ________ house.

You mean the position is still vacant—Yes, but you must know our job is very demanding.—_______.