题目

1. My homework here is less heavy than that of the past in my old school. My homework here is not as __________ __________ __________ I used to get in my old school.  2. I have been to Nanjing many times, but for some unknown reason, I got lost when I was there last month.   Though I have been to Nanjing lots of times, I lost my way __________when I was there last   month. 3. Mr Robert is not only our teacher but also our friend.   Mr Robert is __________ __________ our teacher. He is our friend. 4. Now that you have found a job, you should not depend on your parents.   Sinc20．如图，CD是Rt△ABC斜边AB上的高，AC=5，BC=12．求tanA，sinB，cos∠ACD．