1、Maybe we can keep fit by eating healthy food.
表示行为方式要用by
2、Look at the information about the talent show.information是不可数名词
3、This movie sounds interesting.
sound vt,vi 似乎；听起来
His explanation sounds all right.
他的解释似乎有理.
Your idea sounds a good one.
你的想法听起来很好.
4、The price of the hotel is too high.价格不能够用expensive,只能够用高低hingh或者low.只能够说这个东西expensive或者cheap.