the unreasonable individual income ­_______,the gap between the rich and poor has become an outstanding issue.

We _______ at the house as we _______of buying it.

Ann forgot ______ she had left the car and it took her half an hour to find it in the parking lot.

On those foggy days,you could hardly see anything around you it was at noon.

My mother ________ always wave goodbye to me while I was leaving for school.