Fill in each blank with a suitable preposition or adverb. 用合适的介词或副词填空 1. Let’s put our heads together and decide ____ a plan of action. 2. His name sounds familiar ____ me. I must have heard it before. 3. Ma Yun, the founder of Alibaba, is very well known ____ an entrepreneur. 4. Mary threw ____ the dead flowers. 5. How many hours do you spend ____ learning English every day? 6. A healthy diet should consist ____ a variety of food.