For the following six sentences, fill in each blank with a suitable preposition or adverb. Let’s put our heads together and decide ____ a plan of action. His name sounds familiar ____ me. I must have heard it before. Ma Yun, the founder of Alibaba, is very well known ____ an entrepreneur. Mary threw ____ the dead flowers. How many hours do you spend ____ learning English every day? A healthy diet should consist ____ a variety of food.